Printing: Replace WinziPrint with iText

[#74 ] Weighing: Try to reconnect tcp scales on first error
Bump version to 1.0.3.4
2026-02-25 10:58:37 +01:00 · 2026-02-25 10:57:44 +01:00 · 2026-02-19 19:33:22 +01:00 · 2026-02-19 19:26:39 +01:00 · 2026-02-19 19:26:29 +01:00 · 2026-02-19 18:10:26 +01:00
37 changed files with 642 additions and 317 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,45 @@
 Changelog
 =========

+[v1.0.3.4][v1.0.3.4] (2026-02-19) {#v1.0.3.4}
+---------------------------------------------
+
+### Neue Funktionen {#v1.0.3.4-features}
+
+* Bei Anlieferungsbestätigungen (`DeliveryConfirmation`) wird nun auch die Summe aller abgewerteten Lieferungen angeführt. (9e5f709d42)
+* Bei der Auszahlung werden Traubengutschriften (`CreditNote`) nur noch für Mitglieder erstellt, die einen positiven Betrag ausgezahlt bekommen. (432c511b85)
+
+### Behobene Fehler {#v1.0.3.4-bugfixes}
+
+* Im Haupt-Fenster (`MainWindow`) wurde der Tooltip für den Knopf _Sorten-/Qual.aufschlüssel_ korrigiert. (2c0b000073)
+* Falsch gesetzte `xtime` und `mtime` bei Lieferungen korrigiert. (23db4de1ee)
+* Beim Import von Lieferungen ohne `kgnr` tritt nun kein Fehler auf. (6818491ae3)
+* Beim Abfragen von neuen Daten zum Synchronisieren werden alle Fehler abgefangen. (a47904cf0b)
+
+### Sonstiges {#v1.0.3.4-misc}
+
+* Pdfium wird nun direkt importiert (anstatt über PdfiumViewer). (4cd7ef85a1)
+* Auszahlungsvarianten von vergangenen Saisons sind nun nicht mehr für eine Bearbeitung gesperrt. (7e22759c33)
+* Im Rundschreiben-Fenster (`MailWindow`) ist es nun möglich Dokumente durch Doppelklick an-/abzuwählen. (6f081811c4)
+* Abhängigkeiten aktualisiert. (19c3322ef2, 0e2b004b0d)
+
+[v1.0.3.4]: https://git.necronda.net/winzer/elwig/releases/tag/v1.0.3.4
+
+
+
+
+[v1.0.3.3][v1.0.3.3] (2026-02-05) {#v1.0.3.3}
+---------------------------------------------
+
+### Behobene Fehler {#v1.0.3.3-bugfixes}
+
+* Hotfix: Probleme beim Drucken seit der Installation von [v1.0.3.0](#v1.0.3.0). (c8911c0acb, 8f423e3e92)
+
+[v1.0.3.3]: https://git.necronda.net/winzer/elwig/releases/tag/v1.0.3.3
+
+
+
+
 [v1.0.3.2][v1.0.3.2] (2026-02-04) {#v1.0.3.2}
 ---------------------------------------------

@@ -291,7 +330,7 @@ Changelog
 * Bei Traubengutschriften (`CreditNote`) wurde der Rebelzuschlag immer angeführt, auch wenn dieser in der zugrundeliegenden Berechnung nicht berücksichtigt wurde. (336aef5c70)
 * In den Variantendaten einer Auszahlungsvariante (`PaymentVariantSummary`) wurde neben den Spalten _gebunden_ und _ungebunden_ noch _attributlos gebunden_ hinzugefügt. Ohne diese neue Spalte wären die Werte der anderen beiden falsch. ([#58][i58])
 * Das erste Laden des Ausgangs-Protokoll-Fensters (`MailLogWindow`) hat nicht funktioniert. ([#65][i65])
-* Im Lieferungen-Fenster (`DeliveryAdminWindow`) und im Mitglieder-Fenster (`MemberAdminWindow`) wird der Tool-Tip für Gewicht/Gradation mit korrektem Layout angezeigt. (e9f389b885)
+* Im Lieferungen-Fenster (`DeliveryAdminWindow`) und im Mitglieder-Fenster (`MemberAdminWindow`) wird der Tooltip für Gewicht/Gradation mit korrektem Layout angezeigt. (e9f389b885)
 * Bei Traubengutschriften (`CreditNote`) werden längere Freitexte vollständig angezeigt statt abgeschnitten. ([#62][i62])

 ### Sonstiges {#v1.0.0.0-misc}
--- a/Elwig/Documents/BusinessDocument.cs
+++ b/Elwig/Documents/BusinessDocument.cs
@@ -21,14 +21,6 @@ namespace Elwig.Documents {
            IncludeSender = includeSender;
            var c = App.Client;
            Header = $"<div class='name'>{c.Name}</div><div class='suffix'>{c.NameSuffix}</div><div class='type'>{c.NameTypeFull}</div>";
-            Footer = Utils.GenerateFooter("<br/>", " \u00b7 ")
-                .Item(c.NameFull).NextLine()
-                .Item(c.Address).Item($"{c.Plz} {c.Ort}").Item("Österreich").Item("Tel.", c.PhoneNr).Item("Fax", c.FaxNr).NextLine()
-                .Item(c.EmailAddress != null ? $"<a href=\"mailto:{c.Name} {c.NameSuffix} <{c.EmailAddress}>\">{c.EmailAddress}</a>" : null)
-                    .Item(c.Website != null ? $"<a href=\"http://{c.Website}/\">{c.Website}</a>" : null)
-                    .Item("Betriebs-Nr.", c.LfbisNr).Item("Bio-KSt.", c.OrganicAuthority).NextLine()
-                .Item("UID", c.UstIdNr).Item("BIC", c.Bic).Item("IBAN", c.Iban)
-                .ToString();
            var uid = (m.UstIdNr ?? "-") + (m.IsBuchführend ? "" : " <i>(pauschaliert)</i>");
            Aside = $"<table><colgroup><col span='1' style='width: 22.5mm;'/><col span='1' style='width: 42.5mm;'/></colgroup>" +
                $"<thead><tr><th colspan='2'>Mitglied</th></tr></thead><tbody>" +
--- a/Elwig/Documents/DeliveryConfirmation.cshtml
+++ b/Elwig/Documents/DeliveryConfirmation.cshtml
@@ -100,6 +100,12 @@
                <td></td>
                <td></td>
            </tr>
+            <tr>
+                <td colspan="8">Davon abgewertet:</td>
+                <td colspan="2" class="number">@($"{Model.Data.Rows.Where(p => p.IsDepreciated).Sum(p => p.Weight):N0}")</td>
+                <td></td>
+                <td></td>
+            </tr>
        </tbody>
    </table>
    @Raw(BusinessDocument.PrintSortenaufteilung(Model.MemberStats))
--- a/Elwig/Documents/Document.Page.css
+++ b/Elwig/Documents/Document.Page.css
@@ -1,19 +1,4 @@

-.m1, .m2, .m3 {
-    height: 0;
-    width: 10mm;
-    position: fixed;
-    left: -25mm;
-    border-top: var(--border-thickness) solid black;
-}
-.m1.r, .m2.r, .m3.r {
-    left: initial;
-    right: -20mm;
-}
-.m1 {top: 80mm;}
-.m2 {top: 123.5mm;}
-.m3 {top: 185mm;}
-
 .page-break {
    break-before: page;
 }
@@ -23,15 +8,15 @@ hr.page-break {

@page {
    size: A4;
-    margin: 25mm 20mm 35mm 25mm;
+    margin: 25mm 20mm 25mm 25mm;
+}

-    @bottom-center {
-        content: element(page-footer);
-    }
+@page :first {
+    margin: 25mm 20mm 35mm 25mm;
 }

@media screen {
-    body, header, .footer-wrapper {
+    body, header {
        width: 210mm;
    }

@@ -39,10 +24,6 @@ hr.page-break {
        border: 1px solid lightgray;
    }

-    .m1, .m2, .m3 {
-        display: none;
-    }
-
    header {
        top: 0;
    }
@@ -54,23 +35,9 @@ hr.page-break {
    .main-wrapper {
        margin: 0 20mm 40mm 25mm;
    }
-
-    .footer-wrapper {
-        position: fixed;
-        bottom: 0;
-        left: 0;
-        right: 0;
-        background: white;
-    }
 }

-@media print {
-    .page::after {
-        content: "Seite " counter(page) " von " counter(pages) !important;
-    }
-
-    a {
-        text-decoration: inherit;
-        color: inherit;
-    }
+a {
+    text-decoration: inherit;
+    color: inherit;
 }
--- a/Elwig/Documents/Document.Table.css
+++ b/Elwig/Documents/Document.Table.css
@@ -1,13 +1,13 @@

 main table {
    border-collapse: collapse;
-    margin-bottom: 10mm;
+    margin-bottom: 0mm;
    font-size: 10pt;
 }
 main table.large {font-size: 12pt;}
 main table.tiny {
    font-size: 8pt;
-    margin-bottom: 5mm;
+    margin-bottom: 0mm;
 }

 main table.border {
@@ -30,7 +30,7 @@ main table.small th,
 main table.small td,
 main table.tiny th,
 main table.tiny td {
-    padding: 0.125mm 0.125mm;
+    padding: 0mm 0.125mm;
 }

 main table td[rowspan] {
--- a/Elwig/Documents/Document.cs
+++ b/Elwig/Documents/Document.cs
@@ -31,7 +31,6 @@ namespace Elwig.Documents {
        public string Title;
        public string Author;
        public string Header;
-        public string Footer;
        public DateOnly Date;

        public Document(string title) {
@@ -41,7 +40,6 @@ namespace Elwig.Documents {
            Title = title;
            Author = c.NameFull;
            Header = "";
-            Footer = Utils.GenerateFooter("<br/>", " \u00b7 ").Item(c.NameFull).ToString();
            Date = DateOnly.FromDateTime(Utils.Today);
        }

@@ -122,12 +120,12 @@ namespace Elwig.Documents {
                        var tmpHtml = new TempFile("html");
                        await File.WriteAllTextAsync(tmpHtml.FilePath, await doc.Render(), Utils.UTF8);
                        tmpHtmls.Add(tmpHtml);
-                        tmpFiles.Add((doc is Letterhead ? "#" : "") + tmpHtml.FileName);
+                        tmpFiles.Add((doc is Letterhead ? "#" : "") + tmpHtml.FilePath);
                        i++;
                        progress?.Report(GenerationProportion * 100 * i / n);
                    }
                    progress?.Report(GenerationProportion * 100);
-                    var pages = await Pdf.Convert(tmpFiles, pdf.FileName, IsDoublePaged, cancelToken, new Progress<double>(v => progress?.Report(GenerationProportion * 100 + v * (1 - GenerationProportion))));
+                    var pages = Pdf.Convert(tmpFiles, pdf.FilePath, IsDoublePaged, m.Documents, cancelToken, new Progress<double>(v => progress?.Report(GenerationProportion * 100 + v * (1 - GenerationProportion))));
                    TotalPages = pages.Pages;
                    _pdfFile = pdf;
                } catch {
@@ -146,7 +144,7 @@ namespace Elwig.Documents {
                    using var tmpHtml = new TempFile("html");
                    await File.WriteAllTextAsync(tmpHtml.FilePath, await Render(), Utils.UTF8);
                    progress?.Report(50.0);
-                    var pages = await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath, IsDoublePaged, cancelToken);
+                    var pages = Pdf.Convert(tmpHtml.FilePath, pdf.FilePath, this);
                    TotalPages = pages.Pages;
                    _pdfFile = pdf;
                } catch {
--- a/Elwig/Documents/Document.cshtml
+++ b/Elwig/Documents/Document.cshtml
@@ -13,41 +13,12 @@
    @if (Model.IsDoublePaged) {
        <style>
            @@page :left {
-                margin: 25mm 25mm 35mm 20mm;
-                @@bottom-center {
-                    content: element(page-footer-left);
-                }
+                margin: 25mm 25mm 25mm 20mm;
            }
        </style>
    }
 </head>
 <body>
-    @if (Model.ShowFoldMarks) {
-        <div class="m1"></div>
-        <div class="m2"></div>
-        <div class="m3"></div>
-        <div class="m1 r"></div>
-        <div class="m2 r"></div>
-        <div class="m3 r"></div>
-    }
-    <div class="footer-wrapper">
-        <div class="pre-footer">
-            <span class="date">@($"{Model.Date:dddd, d. MMMM yyyy}")</span>
-            <span class="doc-id">@Model.DocumentId</span>
-            <span><span class="page"></span>@Raw(Model.IsPreview ? " <b>(vorläufig)</b>" : "")</span>
-        </div>
-        <footer>@Raw(Model.Footer)</footer>
-    </div>
-    @if (Model.IsDoublePaged) {
-        <div class="footer-wrapper left">
-            <div class="pre-footer">
-                <span>@Raw(Model.IsPreview ? "<b>(vorläufig)</b> " : "")<span class="page"></span></span>
-                <span class="doc-id">@Model.DocumentId</span>
-                <span class="date">@($"{Model.Date:dddd, d. MMMM yyyy}")</span>
-            </div>
-            <footer>@Raw(Model.Footer)</footer>
-        </div>
-    }
    <header>@Raw(Model.Header)</header>
    <div class="spacing"></div>
    <div class="main-wrapper">
--- a/Elwig/Documents/Document.css
+++ b/Elwig/Documents/Document.css
@@ -55,53 +55,6 @@ header .type {
    font-weight: normal;
 }

-.footer-wrapper {
-    position: running(page-footer);
-    width: 165mm;
-    /* for some reason the position without the following statement changes on the second page */
-    border: var(--border-thickness) solid #00000000;
-}
-
-.footer-wrapper.left {
-    position: running(page-footer-left);
-}
-
-.pre-footer {
-    margin: 1em 0;
-    font-size: 10pt;
-}
-
-.pre-footer > * {
-    display: inline-block;
-    width: 33%;
-}
-
-.pre-footer > *:first-child {
-    text-align: left;
-}
-
-.pre-footer > *:nth-child(2) {
-    text-align: center;
-    font-style: italic;
-}
-
-.pre-footer > *:last-child {
-    text-align: right;
-    float: right;
-}
-
-.pre-footer .page::after {
-    content: "Seite 1 von 1";
-}
-
-footer {
-    font-size: 10pt;
-    border-top: var(--border-thickness) solid black;
-    height: 25mm;
-    padding-top: 1mm;
-    text-align: center;
-}
-
 .hidden {
    visibility: hidden;
 }
--- a/Elwig/Documents/MemberDataSheet.cshtml
+++ b/Elwig/Documents/MemberDataSheet.cshtml
@@ -166,7 +166,6 @@
    }

    @if (areaComs.Count != 0) {
-        <br class="area-commitements"/>
        <h2>Flächenbindungen per @($"{Model.Date:dd.MM.yyyy}")</h2>
        <table class="area-commitements">
            <colgroup>
--- a/Elwig/Documents/MemberDataSheet.css
+++ b/Elwig/Documents/MemberDataSheet.css
@@ -1,5 +1,6 @@

 h2 {
+    margin-top: 0;
    margin-bottom: 0.5em !important;
 }

@@ -22,9 +23,3 @@ table.area-commitements td.text {
 table.area-commitements tr.sum {
    font-size: 12pt;
 }
-
-@page :not(:first) {
-    br.area-commitements {
-        display: none;
-    }
-}
--- a/Elwig/Elwig.csproj
+++ b/Elwig/Elwig.csproj
@@ -3,11 +3,13 @@
  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>net10.0-windows</TargetFramework>
+    <PlatformTarget>x64</PlatformTarget>
    <Nullable>enable</Nullable>
    <UseWPF>true</UseWPF>
+    <UseWindowsForms>true</UseWindowsForms>
    <PreserveCompilationContext>true</PreserveCompilationContext>
    <ApplicationIcon>Resources\Images\Elwig.ico</ApplicationIcon>
-    <Version>1.0.3.2</Version>
+    <Version>1.0.3.4</Version>
    <SatelliteResourceLanguages>de-AT</SatelliteResourceLanguages>
    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
    <ApplicationManifest>app.manifest</ApplicationManifest>
@@ -21,24 +23,25 @@
  </ItemGroup>

  <ItemGroup>
+    <PackageReference Include="bblanchon.PDFium.Win32" Version="147.0.7690" />
    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
-    <PackageReference Include="LinqKit" Version="1.3.9" />
-    <PackageReference Include="MailKit" Version="4.14.1" />
+    <PackageReference Include="itext" Version="9.5.0" />
+    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.5.0" />
+    <PackageReference Include="itext.pdfhtml" Version="6.3.1" />
+    <PackageReference Include="LinqKit" Version="1.3.11" />
+    <PackageReference Include="MailKit" Version="4.15.0" />
    <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.36" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="10.0.2" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Ini" Version="10.0.2" />
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3650.58" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="10.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.3" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Ini" Version="10.0.3" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3800.47" />
    <PackageReference Include="NJsonSchema" Version="11.5.2" />
-    <PackageReference Include="PdfiumViewer" Version="2.13.0" />
-    <PackageReference Include="PdfiumViewer.Native.x86_64.no_v8-no_xfa" Version="2018.4.8.256" />
    <PackageReference Include="RazorLight" Version="2.3.1" />
    <PackageReference Include="ScottPlot.WPF" Version="5.1.57" />
    <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="3.0.2" />
-    <PackageReference Include="System.IO.Hashing" Version="10.0.2" />
-    <PackageReference Include="System.IO.Ports" Version="10.0.2" />
-    <PackageReference Include="System.Management" Version="10.0.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="10.0.2" />
+    <PackageReference Include="System.IO.Hashing" Version="10.0.3" />
+    <PackageReference Include="System.IO.Ports" Version="10.0.3" />
+    <PackageReference Include="System.Management" Version="10.0.3" />
  </ItemGroup>

 </Project>
--- a/Elwig/Helpers/AppDbUpdater.cs
+++ b/Elwig/Helpers/AppDbUpdater.cs
@@ -9,7 +9,7 @@ namespace Elwig.Helpers {
    public static class AppDbUpdater {

        // Don't forget to update value in Tests/fetch-resources.bat!
-        public static readonly int RequiredSchemaVersion = 36;
+        public static readonly int RequiredSchemaVersion = 37;

        private static int VersionOffset = 0;

--- a/Elwig/Helpers/Billing/BillingVariant.cs
+++ b/Elwig/Helpers/Billing/BillingVariant.cs
@@ -80,7 +80,7 @@ namespace Elwig.Helpers.Billing {
                        LEFT JOIN v_penalty_area_commitments u ON (u.year, u.mgnr) = (s.year, m.mgnr)
                        LEFT JOIN v_auto_business_shares a ON (a.year, a.mgnr) = (s.year, m.mgnr)
                        LEFT JOIN payment_custom x ON (x.year, x.mgnr) = (s.year, m.mgnr)
-                    WHERE s.year = {Year} AND v.avnr = {AvNr};
+                    WHERE s.year = {Year} AND v.avnr = {AvNr} AND p.amount > COALESCE(lp.amount, 0);
                    """);
            await cnx.ExecuteBatch($"""
                UPDATE payment_variant SET test_variant = FALSE WHERE (year, avnr) = ({Year}, {AvNr});
--- a/Elwig/Helpers/Export/ElwigData.cs
+++ b/Elwig/Helpers/Export/ElwigData.cs
@@ -783,15 +783,15 @@ namespace Elwig.Helpers.Export {
                Comment = json["comment"]?.AsValue().GetValue<string>(),
                ImportedAt = DateTime.Now,
            }, json["parts"]!.AsArray().Select(p => p!.AsObject()).Select(p => {
-                var kgnr = p["kgnr"]!.AsValue().GetValue<int>();
+                var kgnr = p["kgnr"]?.AsValue().GetValue<int>();
                var ried = p["ried"]?.AsValue().GetValue<string>();
                WbRd? rd = null;
-                if (ried != null) {
-                    var rde = riede.GetValueOrDefault(kgnr, []);
+                if (ried != null && kgnr != null) {
+                    var rde = riede.GetValueOrDefault(kgnr.Value, []);
                    rd = rde.FirstOrDefault(r => r.Name == ried);
                    if (rd == null) {
                        rd = new WbRd {
-                            KgNr = kgnr,
+                            KgNr = kgnr.Value,
                            RdNr = (rde.Count == 0 ? 1 : rde.Max(r => r.RdNr)) + 1,
                            Name = ried,
                        };
--- a/Elwig/Helpers/Printing/FooterEventHandler.cs
+++ b/Elwig/Helpers/Printing/FooterEventHandler.cs
@@ -0,0 +1,176 @@
+using Elwig.Documents;
+using iText.IO.Font.Constants;
+using iText.Kernel.Font;
+using iText.Kernel.Geom;
+using iText.Kernel.Pdf;
+using iText.Kernel.Pdf.Action;
+using iText.Kernel.Pdf.Canvas;
+using iText.Kernel.Pdf.Event;
+using iText.Kernel.Pdf.Xobject;
+using iText.Layout;
+using iText.Layout.Borders;
+using iText.Layout.Element;
+using iText.Layout.Properties;
+using System;
+using System.Collections.Generic;
+
+namespace Elwig.Helpers.Printing {
+    public class FooterEventHandler : AbstractPdfDocumentEventHandler {
+
+        private const float _fontSize = 10;
+        private const float _ptInMm = 2.8346456693f;
+        private const float _placeholderWidth = 50 * _ptInMm;
+
+        private readonly string _date;
+        private readonly string? _center;
+        private readonly bool _doublePaged;
+        private readonly bool _isPreview;
+        private readonly bool _isBusiness;
+        private readonly bool _showFoldMarks;
+        private readonly PdfFont _font;
+        private readonly PdfFont _fontBold;
+        private readonly PdfFont _fontItalic;
+
+        private readonly List<PdfFormXObject> _pageNumPlaceholders;
+
+        public int NumberOfPages { get; private set; }
+
+        public FooterEventHandler(Documents.Document? doc = null) {
+            _date = $"{doc?.Date ?? DateOnly.FromDateTime(Utils.Today):dddd, d. MMMM yyyy}";
+            _center = doc?.DocumentId;
+            _doublePaged = doc?.IsDoublePaged ?? false;
+            _isPreview = doc?.IsPreview ?? false;
+            _isBusiness = doc is BusinessDocument;
+            _showFoldMarks = doc?.ShowFoldMarks ?? false;
+            _font = PdfFontFactory.CreateFont(StandardFonts.TIMES_ROMAN);
+            _fontBold = PdfFontFactory.CreateFont(StandardFonts.TIMES_BOLD);
+            _fontItalic = PdfFontFactory.CreateFont(StandardFonts.TIMES_ITALIC);
+            _pageNumPlaceholders = [];
+        }
+
+        protected override void OnAcceptedEvent(AbstractPdfDocumentEvent evt) {
+            if (evt.GetType() == PdfDocumentEvent.END_PAGE) {
+                OnPageEnd((PdfDocumentEvent)evt);
+            } else if (evt.GetType() == PdfDocumentEvent.START_DOCUMENT_CLOSING) {
+                OnDocumentClose((PdfDocumentEvent)evt);
+            }
+        }
+
+        private void OnPageEnd(PdfDocumentEvent evt) {
+            var pdf = evt.GetDocument();
+            var page = evt.GetPage();
+            var pageNum = pdf.GetPageNumber(page);
+
+            var pageSize = page.GetPageSize();
+            float leftX1 = pageSize.GetLeft() + 25 * _ptInMm;
+            float leftX2 = pageSize.GetLeft() + 20 * _ptInMm;
+            float rightX1 = pageSize.GetRight() - 20 * _ptInMm;
+            float rightX2 = pageSize.GetRight() - 25 * _ptInMm;
+            float footerY = pageSize.GetBottom() + 25 * _ptInMm;
+            float y = footerY + _fontSize;
+            float footerWidth = 165 * _ptInMm;
+            float footerHeight = 25 * _ptInMm;
+
+            var pdfCanvas = new PdfCanvas(page.NewContentStreamAfter(), page.GetResources(), pdf);
+            using var canvas = new Canvas(pdfCanvas, pageSize);
+
+            var placeholder = new PdfFormXObject(new Rectangle(0, 0, _placeholderWidth, _fontSize));
+            _pageNumPlaceholders.Add(placeholder);
+
+            var c = App.Client;
+            var dateP = new Paragraph(_date).SetFont(_font).SetFontSize(_fontSize);
+            var centerP = new Paragraph(_center ?? "").SetFont(_fontItalic).SetFontSize(_fontSize);
+            var pageNumP = new Paragraph().Add(new Image(placeholder)).SetFont(_font).SetFontSize(_fontSize);
+
+            if (pageNum == 1) {
+                // First page
+                canvas.ShowTextAligned(dateP, leftX1, y, TextAlignment.LEFT);
+                canvas.ShowTextAligned(centerP, (leftX1 + rightX1) / 2, y, TextAlignment.CENTER);
+                canvas.ShowTextAligned(pageNumP, rightX1, y, TextAlignment.RIGHT);
+
+                var footerP = new Paragraph().SetFont(_font).SetFontSize(_fontSize)
+                    .SetTextAlignment(TextAlignment.CENTER).SetVerticalAlignment(VerticalAlignment.TOP)
+                    .SetMargin(0).SetMultipliedLeading(1)
+                    .SetWidth(footerWidth).SetHeight(footerHeight).SetPaddingTop(1 * _ptInMm).SetBorderTop(new SolidBorder(0.5f))
+                    .Add(c.NameFull);
+                if (_isBusiness) {
+                    footerP.Add("\n");
+                    footerP.AddAll(Utils.GenerateFooter("\n", " \u00b7 ")
+                        .Item(c.Address).Item($"{c.Plz} {c.Ort}").Item("Österreich").Item("Tel.", c.PhoneNr).Item("Fax", c.FaxNr).NextLine()
+                        .Item(c.EmailAddress != null ? new Link(c.EmailAddress, PdfAction.CreateURI($"mailto:{Uri.EscapeDataString(c.Name)}%20<{c.EmailAddress}>")) : null)
+                            .Item(c.Website != null ? new Link(c.Website, PdfAction.CreateURI($"http://{c.Website}/")) : null)
+                            .Item("Betriebs-Nr.", c.LfbisNr).Item("Bio-KSt.", c.OrganicAuthority).NextLine()
+                        .Item("UID", c.UstIdNr).Item("BIC", c.Bic).Item("IBAN", c.Iban)
+                        .ToLeafElements());
+                }
+                // FIXME links are drawn on next page - move footer into "normal" document creation
+                canvas.ShowTextAligned(footerP, (leftX1 + rightX1) / 2, footerY, TextAlignment.CENTER, VerticalAlignment.TOP);
+            } else if (_doublePaged && (pageNum % 2 == 0)) {
+                // Swap side
+                canvas.ShowTextAligned(pageNumP, leftX2, footerY, TextAlignment.LEFT, VerticalAlignment.TOP);
+                canvas.ShowTextAligned(centerP, (leftX2 + rightX2) / 2, footerY, TextAlignment.CENTER, VerticalAlignment.TOP);
+                canvas.ShowTextAligned(dateP, rightX2, footerY, TextAlignment.RIGHT, VerticalAlignment.TOP);
+            } else {
+                canvas.ShowTextAligned(dateP, leftX1, footerY, TextAlignment.LEFT, VerticalAlignment.TOP);
+                canvas.ShowTextAligned(centerP, (leftX1 + rightX1) / 2, footerY, TextAlignment.CENTER, VerticalAlignment.TOP);
+                canvas.ShowTextAligned(pageNumP, rightX1, footerY, TextAlignment.RIGHT, VerticalAlignment.TOP);
+            }
+
+            if (_showFoldMarks) {
+                var m1 = pageSize.GetTop() - 105 * _ptInMm;
+                var m2 = pageSize.GetTop() - 148.5 * _ptInMm;
+                var m3 = pageSize.GetTop() - 210 * _ptInMm;
+                pdfCanvas.SetLineWidth(0.5f);
+
+                pdfCanvas.MoveTo(0, m1);
+                pdfCanvas.LineTo(10 * _ptInMm, m1);
+                pdfCanvas.MoveTo(pageSize.GetRight(), m1);
+                pdfCanvas.LineTo(pageSize.GetRight() - 10 * _ptInMm, m1);
+
+                pdfCanvas.MoveTo(0, m2);
+                pdfCanvas.LineTo(7 * _ptInMm, m2);
+                pdfCanvas.MoveTo(pageSize.GetRight(), m2);
+                pdfCanvas.LineTo(pageSize.GetRight() - 7 * _ptInMm, m2);
+
+                pdfCanvas.MoveTo(0, m3);
+                pdfCanvas.LineTo(10 * _ptInMm, m3);
+                pdfCanvas.MoveTo(pageSize.GetRight(), m3);
+                pdfCanvas.LineTo(pageSize.GetRight() - 10 * _ptInMm, m3);
+
+                pdfCanvas.ClosePathStroke();
+            }
+
+            if (NumberOfPages > 0) {
+                // FillPlaceholders() was already called
+                FillPlaceholder(pdf, pageNum);
+            }
+        }
+
+        private void OnDocumentClose(PdfDocumentEvent evt) {
+            FillPlaceholders(evt.GetDocument());
+        }
+
+        private void FillPlaceholders(PdfDocument pdf) {
+            NumberOfPages = pdf.GetNumberOfPages();
+            for (int i = 0; i < _pageNumPlaceholders.Count; i++)
+                FillPlaceholder(pdf, i + 1);
+        }
+
+        private void FillPlaceholder(PdfDocument pdf, int pageNum) {
+            var placeholder = _pageNumPlaceholders[pageNum - 1];
+            using var canvas = new Canvas(placeholder, pdf);
+            if (_doublePaged && (pageNum % 2 == 0)) {
+                // swap
+                var p = new Paragraph().SetFont(_font).SetFontSize(_fontSize);
+                if (_isPreview) p.Add(new Text("(vorläufig) ").SetFont(_fontBold));
+                p.Add($"Seite {pageNum:N0} von {NumberOfPages:N0} ");
+                canvas.ShowTextAligned(p, 0, 0, TextAlignment.LEFT);
+            } else {
+                var p = new Paragraph().SetFont(_font).SetFontSize(_fontSize)
+                    .Add($"Seite {pageNum:N0} von {NumberOfPages:N0}");
+                if (_isPreview) p.Add(new Text(" (vorläufig)").SetFont(_fontBold));
+                canvas.ShowTextAligned(p, _placeholderWidth, 0, TextAlignment.RIGHT);
+            }
+        }
+    }
+}
--- a/Elwig/Helpers/Printing/Pdf.cs
+++ b/Elwig/Helpers/Printing/Pdf.cs
@@ -1,102 +1,148 @@
 using Elwig.Windows;
-using PdfiumViewer;
+using iText.Html2pdf;
+using iText.Kernel.Pdf;
+using iText.Kernel.Pdf.Event;
+using iText.Kernel.Utils;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Drawing.Printing;
 using System.IO;
 using System.Linq;
-using System.Net.Sockets;
-using System.Reflection;
-using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;

 namespace Elwig.Helpers.Printing {
    public static class Pdf {
-
-        private static readonly string WinziPrint = (Assembly.GetEntryAssembly()?.Location.Contains(@"\bin\") ?? false) ?
-            Path.Combine(Assembly.GetEntryAssembly()!.Location.Split(@"\bin\")[0], "../Installer/Files/WinziPrint.exe") :
-            new string[] { App.InstallPath }
-                .Union(Environment.GetEnvironmentVariable("PATH")?.Split(';') ?? [])
-                .Select(x => Path.Combine(x, "WinziPrint.exe"))
-                .Where(File.Exists)
-                .FirstOrDefault() ?? throw new FileNotFoundException("WiniPrint executable not found");
-        private static Process? WinziPrintProc;
-        public static bool IsReady => WinziPrintProc != null;
-
-        public static async Task Init(Action? evtHandler = null) {
-            // NOTE: If the WinziPrint daemon is already running this will succeed, but the process will fail.
-            //       Should be no problem, as long as the daemon is not closed
-            var p = new Process() { StartInfo = new() {
-                FileName = WinziPrint,
-                CreateNoWindow = true,
-                UseShellExecute = false,
-                RedirectStandardOutput = true,
-            } };
-            p.StartInfo.ArgumentList.Add("-D");
-            p.StartInfo.ArgumentList.Add("-d");
-            p.StartInfo.ArgumentList.Add(App.TempPath);
-            p.Start();
-            await p.StandardOutput.ReadLineAsync();
-            WinziPrintProc = p;
+        public static Task Init(Action? evtHandler = null) {
+            PdfiumNative.FPDF_InitLibrary();
            evtHandler?.Invoke();
-        }
-
-        public static Task Cleanup() {
-            WinziPrintProc?.Kill(true);
-            WinziPrintProc?.Close();
            return Task.CompletedTask;
        }

-        public static async Task<(int Pages, IEnumerable<int> PerDoc)> Convert(string htmlPath, string pdfPath, bool doublePaged = false, CancellationToken? cancelToken = null, IProgress<double>? progress = null) {
-            return await Convert([htmlPath], pdfPath, doublePaged, cancelToken, progress);
+        public static Task Cleanup() {
+            PdfiumNative.FPDF_DestroyLibrary();
+            return Task.CompletedTask;
        }

-        public static async Task<(int Pages, IEnumerable<int> PerDoc)> Convert(IEnumerable<string> htmlPath, string pdfPath, bool doublePaged = false, CancellationToken? cancelToken = null, IProgress<double>? progress = null) {
-            if (WinziPrintProc == null) throw new InvalidOperationException("The WinziPrint process has not been initialized yet");
-            progress?.Report(0.0);
-            using var client = new TcpClient("127.0.0.1", 30983);
-            using var stream = client.GetStream();
-            string cnxId;
-            using var reader = new StreamReader(stream);
-            var first = await reader.ReadLineAsync() ?? throw new IOException("Invalid response from WinziPrint");
-            if (first.StartsWith("id:")) {
-                cnxId = first[3..].Trim();
-            } else {
-                throw new IOException("Invalid response from WinziPrint");
-            }
-            await stream.WriteAsync(Utils.UTF8.GetBytes(
-                "-e utf-8;-p;" + (doublePaged ? "-2;" : "") +
-                $"{string.Join(';', htmlPath)};{pdfPath}" +
-                "\r\n"));
-            bool cancelled = false;
-            while (true) {
-                if (!cancelled && (cancelToken?.IsCancellationRequested ?? false)) {
-                    try {
-                        using var cancelClient = new TcpClient("127.0.0.1", 30983);
-                        using var cancelStream = cancelClient.GetStream();
-                        using var cancelReader = new StreamReader(cancelStream);
-                        await cancelReader.ReadLineAsync();
-                        await cancelStream.WriteAsync(Utils.UTF8.GetBytes($"cancel;{cnxId}\r\n"));
-                    } catch { }
-                    cancelled = true;
+        public static (int Pages, IEnumerable<int> PerDoc) Convert(string htmlPath, string pdfPath, Documents.Document? doc = null) {
+            int nPages;
+            using var html = File.Open(htmlPath, FileMode.Open);
+            using var writer = new PdfWriter(pdfPath);
+            using var pdf = new PdfDocument(writer);
+            var footerHandler = new FooterEventHandler(doc);
+            pdf.AddEventHandler(PdfDocumentEvent.END_PAGE, footerHandler);
+            pdf.AddEventHandler(PdfDocumentEvent.START_DOCUMENT_CLOSING, footerHandler);
+            // TODO embed fonts?
+            //pdf.AddFont(PdfFontFactory.CreateFont(StandardFonts.TIMES_ROMAN));
+            HtmlConverter.ConvertToPdf(html, pdf);
+            nPages = footerHandler.NumberOfPages;
+            return (nPages, [nPages]);
+        }
+
+        public static (int Pages, IEnumerable<int> PerDoc) Convert(IEnumerable<string> inputFiles, string pdfPath, bool doublePaged = false, IEnumerable<Documents.Document>? docs = null, CancellationToken? cancelToken = null, IProgress<double>? progress = null) {
+            var tmpFileNames = new List<string>();
+            var pageNums = new List<int>();
+            var tmpPageNums = new List<int>();
+
+            var htmlFiles = inputFiles
+                .Where(f => !f.EndsWith(".pdf", StringComparison.OrdinalIgnoreCase))
+                .Select(f => f.TrimStart('!', '#'))
+                .ToList();
+
+            try {
+                for (int i = 0; i < htmlFiles.Count; i++) {
+                    string tmpFile = $"{pdfPath}.{i:0000}.part";
+                    tmpFileNames.Add(tmpFile);
+                    var (pages, _) = Convert(htmlFiles[i], tmpFile, docs?.ElementAt(i));
+                    tmpPageNums.Add(pages);
                }
-                var line = await reader.ReadLineAsync() ?? throw new IOException("Invalid response from WinziPrint");
-                if (line.StartsWith("error:")) {
-                    var msg = line[6..].Trim();
-                    if (msg == "aborted")
-                        throw new OperationCanceledException("Dokumentenerzeugung abgebrochen!");
-                    throw new IOException($"WinziPrint: {msg}");
-                } else if (line.StartsWith("progress:")) {
-                    var parts = line[9..].Trim().Split('/').Select(int.Parse).ToArray();
-                    progress?.Report(100.0 * parts[0] / parts[1]);
-                } else if (line.StartsWith("success:")) {
-                    var m = Regex.Match(line, @"([0-9]+) pages \(([0-9, ]+)\)");
-                    return (int.Parse(m.Groups[1].Value), m.Groups[2].Value.Split(", ").Select(int.Parse).ToList());
+
+                using var writer = new PdfWriter(pdfPath);
+                using var mergedPdf = new PdfDocument(writer);
+                var merger = new PdfMerger(mergedPdf);
+
+                PdfPage? letterheadPage = null;
+                int letterheadInsertIndex = 0;
+                int letterheadDocIndex = 0;
+
+                for (int i = 0; i < inputFiles.Count(); i++) {
+                    var fileName = inputFiles.ElementAt(i);
+                    int p0 = mergedPdf.GetNumberOfPages();
+
+                    if (letterheadPage != null && fileName.StartsWith('#')) {
+                        if (mergedPdf.GetNumberOfPages() <= letterheadInsertIndex) {
+                            mergedPdf.AddPage(letterheadPage.CopyTo(mergedPdf));
+                            mergedPdf.AddNewPage();
+                        } else {
+                            mergedPdf.AddPage(letterheadInsertIndex + 1, letterheadPage.CopyTo(mergedPdf));
+                            mergedPdf.AddNewPage(letterheadInsertIndex + 2);
+                        }
+
+                        pageNums[letterheadDocIndex] = 1;
+                        letterheadPage = null;
+                    }
+
+                    if (fileName.EndsWith(".pdf", StringComparison.OrdinalIgnoreCase)) {
+                        var cleanName = fileName.TrimStart('!', '#');
+
+                        if (doublePaged && fileName.StartsWith('#')) {
+                            using var reader = new PdfReader(cleanName);
+                            using var src = new PdfDocument(reader);
+                            letterheadPage = src.GetPage(1).CopyTo(mergedPdf);
+                            letterheadInsertIndex = p0;
+                            letterheadDocIndex = i;
+                        } else {
+                            using var reader = new PdfReader(cleanName);
+                            using var src = new PdfDocument(reader);
+                            merger.Merge(src, 1, src.GetNumberOfPages());
+                        }
+                    } else {
+                        string tmpFile = tmpFileNames[i];
+                        if (doublePaged && fileName.StartsWith('#')) {
+                            using var reader = new PdfReader(tmpFile);
+                            using var src = new PdfDocument(reader);
+                            letterheadPage = src.GetPage(1).CopyTo(mergedPdf);
+                            letterheadInsertIndex = p0;
+                            letterheadDocIndex = i;
+                        } else {
+                            using var reader = new PdfReader(tmpFile);
+                            using var src = new PdfDocument(reader);
+                            merger.Merge(src, 1, tmpPageNums[i]);
+                        }
+                    }
+
+                    int p1 = mergedPdf.GetNumberOfPages();
+                    pageNums.Add(p1 - p0);
+
+                    if (doublePaged && fileName[0] != '!' && fileName[0] != '#' && mergedPdf.GetNumberOfPages() % 2 != 0) {
+                        if (letterheadPage != null) {
+                            mergedPdf.AddPage(letterheadPage.CopyTo(mergedPdf));
+                            letterheadPage = null;
+                        } else {
+                            mergedPdf.AddNewPage();
+                        }
+                    }
+                }
+
+                if (letterheadPage != null) {
+                    if (mergedPdf.GetNumberOfPages() <= letterheadInsertIndex) {
+                        mergedPdf.AddPage(letterheadPage.CopyTo(mergedPdf));
+                        mergedPdf.AddNewPage();
+                    } else {
+                        mergedPdf.AddPage(letterheadInsertIndex + 1, letterheadPage.CopyTo(mergedPdf));
+                        mergedPdf.AddNewPage(letterheadInsertIndex + 2);
+                    }
+
+                    pageNums[letterheadDocIndex] = 1;
+                }
+            } finally {
+                foreach (var tmp in tmpFileNames) {
+                    if (File.Exists(tmp)) File.Delete(tmp);
                }
            }
+
+            return (pageNums.Sum(), pageNums);
        }

        public static void Show(TempFile file, string title) {
@@ -123,9 +169,9 @@ namespace Elwig.Helpers.Printing {

        public static Task Print(string path, PrinterSettings settings) {
            try {
-                using var doc = PdfDocument.Load(path);
-                using var printDoc = doc.CreatePrintDocument(PdfPrintMode.CutMargin);
-                printDoc.PrinterSettings = settings;
+                using var printDoc = new PdfPrintDocument(path) {
+                    PrinterSettings = settings,
+                };
                printDoc.Print();
            } catch (Exception e) {
                MessageBox.Show("Beim Drucken ist ein Fehler aufgetreten:\n\n" + e.Message, "Fehler beim Drucken", MessageBoxButton.OK, MessageBoxImage.Error);
--- a/Elwig/Helpers/Printing/PdfPrintDocument.cs
+++ b/Elwig/Helpers/Printing/PdfPrintDocument.cs
@@ -0,0 +1,102 @@
+using System;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.Drawing.Printing;
+using System.Runtime.InteropServices;
+
+namespace Elwig.Helpers.Printing {
+    public class PdfPrintDocument : PrintDocument {
+
+        private readonly IntPtr _handle;
+        private readonly int _pageCount;
+        private readonly double _dpi;
+
+        private int _currentPage;
+
+        public PdfPrintDocument(string path, string? password = null, double dpi = 300.0) :
+            base() {
+            _handle = PdfiumNative.FPDF_LoadDocument(path, password);
+            _pageCount = PdfiumNative.FPDF_GetPageCount(_handle);
+            _dpi = dpi;
+        }
+
+        protected override void Dispose(bool disposing) {
+            PdfiumNative.FPDF_CloseDocument(_handle);
+            base.Dispose(disposing);
+        }
+
+        protected override void OnBeginPrint(PrintEventArgs evt) {
+            _currentPage = (PrinterSettings.FromPage != 0) ? (PrinterSettings.FromPage - 1) : 0;
+            base.OnBeginPrint(evt);
+        }
+
+        protected override void OnPrintPage(PrintPageEventArgs evt) {
+            if (_currentPage < _pageCount) {
+                IntPtr page = PdfiumNative.FPDF_LoadPage(_handle, _currentPage);
+                double width = PdfiumNative.FPDF_GetPageWidth(page);
+                double height = PdfiumNative.FPDF_GetPageHeight(page);
+                int pixelWidth = (int)(width / 72.0 * _dpi);
+                int pixelHeight = (int)(height / 72.0 * _dpi);
+
+                IntPtr bitmap = PdfiumNative.FPDFBitmap_Create(pixelWidth, pixelHeight, 1);
+                PdfiumNative.FPDF_RenderPageBitmap(bitmap, page, 0, 0, pixelWidth, pixelHeight, 0, 0);
+
+                IntPtr buffer = PdfiumNative.FPDFBitmap_GetBuffer(bitmap);
+                int stride = PdfiumNative.FPDFBitmap_GetStride(bitmap);
+                using (var bmp = new Bitmap(pixelWidth, pixelHeight, stride, PixelFormat.Format32bppArgb, buffer)) {
+                    evt.Graphics?.DrawImage(bmp, evt.PageBounds);
+                }
+                _currentPage++;
+
+                PdfiumNative.FPDFBitmap_Destroy(bitmap);
+                PdfiumNative.FPDF_ClosePage(page);
+            }
+            evt.HasMorePages = _currentPage < ((PrinterSettings.ToPage == 0) ? _pageCount : Math.Min(PrinterSettings.ToPage, _pageCount));
+            base.OnPrintPage(evt);
+        }
+    }
+
+    internal partial class PdfiumNative {
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDF_InitLibrary();
+
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDF_DestroyLibrary();
+
+        [LibraryImport("pdfium.dll", StringMarshalling = StringMarshalling.Utf8)]
+        public static partial IntPtr FPDF_LoadDocument(string filePath, string? password);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDF_CloseDocument(IntPtr document);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial int FPDF_GetPageCount(IntPtr document);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial IntPtr FPDF_LoadPage(IntPtr document, int pageIndex);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDF_ClosePage(IntPtr page);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial double FPDF_GetPageWidth(IntPtr page);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial double FPDF_GetPageHeight(IntPtr page);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial IntPtr FPDFBitmap_Create(int width, int height, int alpha);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDFBitmap_Destroy(IntPtr bitmap);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial IntPtr FPDFBitmap_GetBuffer(IntPtr bitmap);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial int FPDFBitmap_GetStride(IntPtr bitmap);
+
+        [LibraryImport("pdfium.dll")]
+        public static partial void FPDF_RenderPageBitmap(IntPtr bitmap, IntPtr page, int start_x, int start_y, int size_x, int size_y, int rotate, int flags);
+    }
+}
--- a/Elwig/Helpers/Utils.cs
+++ b/Elwig/Helpers/Utils.cs
@@ -3,6 +3,7 @@ using Elwig.Documents;
 using Elwig.Helpers.Billing;
 using Elwig.Models;
 using Elwig.Models.Entities;
+using iText.Layout.Element;
 using LinqKit;
 using MailKit.Net.Smtp;
 using MailKit.Security;
@@ -304,23 +305,18 @@ namespace Elwig.Helpers {
        }

        public class Footer {
-            private string Text = "";
+            private readonly List<List<object>> Items = [[]];
            private readonly string LineBreak;
-            private readonly string Seperator;
-            private bool FirstLine = true;
-            private bool FirstItemInLine = true;
+            private readonly string Separator;

-            public Footer(string lineBreak, string seperator) {
+            public Footer(string lineBreak, string separator) {
                LineBreak = lineBreak;
-                Seperator = seperator;
+                Separator = separator;
            }

-            public Footer Item(string? text) {
+            public Footer Item(object? text) {
                if (text == null) return this;
-                Text += FirstItemInLine ? (FirstLine ? "" : LineBreak) : Seperator;
-                Text += text;
-                FirstLine = false;
-                FirstItemInLine = false;
+                Items[^1].Add(text);
                return this;
            }

@@ -329,12 +325,28 @@ namespace Elwig.Helpers {
            }

            public Footer NextLine() {
-                FirstItemInLine = true;
+                Items.Add([]);
                return this;
            }

            public override string ToString() {
-                return Text;
+                return string.Join(LineBreak, Items.Select(l => string.Join(Separator, l.ToString())));
+            }
+
+            public IList<ILeafElement> ToLeafElements() {
+                var l = new List<ILeafElement>();
+                var first1 = true;
+                foreach (var line in Items) {
+                    if (!first1) l.Add(new Text(LineBreak));
+                    var first2 = true;
+                    foreach (var item in line) {
+                        if (!first2) l.Add(new Text(Separator));
+                        l.Add(item as ILeafElement ?? new Text(item.ToString()));
+                        first2 = false;
+                    }
+                    first1 = false;
+                }
+                return l;
            }
        }

--- a/Elwig/Helpers/Weighing/GassnerScale.cs
+++ b/Elwig/Helpers/Weighing/GassnerScale.cs
@@ -53,9 +53,16 @@ namespace Elwig.Helpers.Weighing {
            return line[1..^1];
        }

-        protected async Task<WeighingResult> Weigh(bool incIdentNr) {
-            await SendCommand(incIdentNr ? '\x05' : '?');
-            string record = await ReceiveResponse();
+        protected async Task<WeighingResult> Weigh(bool incIdentNr, bool retry = true) {
+            string record;
+            try {
+                await SendCommand(incIdentNr ? '\x05' : '?');
+                record = await ReceiveResponse();
+            } catch (IOException) {
+                if (!retry || Tcp == null) throw;
+                ReconnectTcp();
+                return await Weigh(incIdentNr, false);
+            }
            if (record.Length != 45)
                throw new FormatException("Invalid response from scale: Received record has invalid size");
            var line = record[2..];
--- a/Elwig/Helpers/Weighing/Scale.cs
+++ b/Elwig/Helpers/Weighing/Scale.cs
@@ -10,6 +10,7 @@ namespace Elwig.Helpers.Weighing {

        protected enum Output { RTS, DTR, OUT1, OUT2 };

+        protected readonly string Connection;
        protected SerialPort? Serial = null;
        protected SerialPort? ControlSerialEmpty = null, ControlSerialFilling = null;
        protected TcpClient? Tcp = null;
@@ -37,6 +38,7 @@ namespace Elwig.Helpers.Weighing {
        }

        protected Scale(string cnx, string? empty, string? filling, int? limit, string? log, bool softFail = false, bool failSilent = false) {
+            Connection = cnx;
            if (cnx.StartsWith("serial:")) {
                try {
                    Serial = Utils.OpenSerialConnection(cnx);
@@ -95,6 +97,14 @@ namespace Elwig.Helpers.Weighing {
            GC.SuppressFinalize(this);
        }

+        protected void ReconnectTcp() {
+            if (Connection.StartsWith("tcp:")) {
+                Tcp = Utils.OpenTcpConnection(Connection);
+                Stream = Tcp.GetStream();
+                Reader = new(Stream, Encoding.ASCII, false, 512);
+            }
+        }
+
        protected static Output? ConvertOutput(string? value) {
            return value switch {
                null => null,
--- a/Elwig/Helpers/Weighing/SysTecITScale.cs
+++ b/Elwig/Helpers/Weighing/SysTecITScale.cs
@@ -33,7 +33,9 @@ namespace Elwig.Helpers.Weighing {
        protected async Task<string> ReceiveResponse() {
            var line = await Reader.ReadUntilAsync("\r\n");
            if (LogPath != null) await File.AppendAllTextAsync(LogPath, line);
-            if (line == null || line.Length < 4 || !line.StartsWith('<') || !line.EndsWith(">\r\n")) {
+            if (line == null) {
+                throw new IOException("Verbindung zu Waage verloren");
+            } else if (line.Length < 4 || !line.StartsWith('<') || !line.EndsWith(">\r\n")) {
                throw new FormatException("Invalid response from scale");
            }

@@ -72,9 +74,16 @@ namespace Elwig.Helpers.Weighing {
            return line[1..^3];
        }

-        protected async Task<WeighingResult> Weigh(bool incIdentNr) {
-            await SendCommand(incIdentNr ? $"RN{InternalScaleNr}" : $"RM{InternalScaleNr}");
-            string record = await ReceiveResponse();
+        protected async Task<WeighingResult> Weigh(bool incIdentNr, bool retry = true) {
+            string record;
+            try {
+                await SendCommand(incIdentNr ? $"RN{InternalScaleNr}" : $"RM{InternalScaleNr}");
+                record = await ReceiveResponse();
+            } catch (IOException) {
+                if (!retry || Tcp == null) throw;
+                ReconnectTcp();
+                return await Weigh(incIdentNr, false);
+            }
            if (record.Length != 62)
                throw new FormatException("Invalid response from scale: Received record has invalid size");
            var line = record[2..];
--- a/Elwig/Models/Dtos/DeliveryConfirmationDeliveryData.cs
+++ b/Elwig/Models/Dtos/DeliveryConfirmationDeliveryData.cs
@@ -75,6 +75,7 @@ namespace Elwig.Models.Dtos {
        public string? Attribute;
        public string? Cultivation;
        public string QualityLevel;
+        public bool IsDepreciated;
        public (double Oe, double Kmw) Gradation;
        public string[] Modifiers;
        public int Weight;
@@ -89,17 +90,15 @@ namespace Elwig.Models.Dtos {
            Attribute = p.Attribute?.Name;
            Cultivation = p.Cultivation?.Name;
            QualityLevel = p.Quality.Name;
+            IsDepreciated = p.QualId == "WEI";
            Gradation = (p.Oe, p.Kmw);
-            Modifiers = p.Modifiers
-                .Select(m => m.Name)
-                .ToArray();
+            Modifiers = [.. p.Modifiers.Select(m => m.Name)];
            Weight = p.Weight;
            IsNetWeight = p.IsNetWeight;
-            Buckets = p.Buckets
+            Buckets = [.. p.Buckets
                .Where(b => b.Value > 0)
                .OrderByDescending(b => b.BktNr)
-                .Select(b => (b.Discr == "_" ? "ungeb." : $"geb. {p.SortId}{b.Discr}", b.Value))
-                .ToArray();
+                .Select(b => (b.Discr == "_" ? "ungeb." : $"geb. {p.SortId}{b.Discr}", b.Value))];
        }
    }
 }
--- a/Elwig/Resources/Sql/34-35.sql
+++ b/Elwig/Resources/Sql/34-35.sql
@@ -1,6 +1,8 @@
 -- schema version 34 to 35

+UPDATE client_parameter SET value = '0' WHERE param = 'ENABLE_TIME_TRIGGERS';
 ALTER TABLE delivery_part ADD COLUMN unloading TEXT DEFAULT NULL;
 UPDATE delivery_part SET unloading = 'pumped' WHERE lesewagen;
 UPDATE delivery_part SET unloading = 'box' WHERE (SELECT zwstid IN ('H','S') FROM delivery d WHERE (d.year, d.did) = (delivery_part.year, delivery_part.did));
 ALTER TABLE delivery_part DROP COLUMN lesewagen;
+UPDATE client_parameter SET value = '1' WHERE param = 'ENABLE_TIME_TRIGGERS';
--- a/Elwig/Resources/Sql/36-37.sql
+++ b/Elwig/Resources/Sql/36-37.sql
@@ -0,0 +1,12 @@
+-- schema version 36 to 37
+
+UPDATE client_parameter SET value = '0' WHERE param = 'ENABLE_TIME_TRIGGERS';
+
+-- fix old deliveries
+UPDATE delivery         SET xtime = NULL, mtime = ctime WHERE year <= 2022 AND mtime >= 1768521600 AND mtime < 1772323200;
+UPDATE delivery_part    SET xtime = NULL, mtime = ctime WHERE year <= 2022 AND mtime >= 1768521600 AND mtime < 1772323200;
+-- clear xtime at one laptop to force updates from this one
+UPDATE delivery         SET xtime = NULL WHERE year >= 2023 AND xtime >= 1771200000 AND xtime < 1771286400;
+UPDATE delivery_part    SET xtime = NULL WHERE year >= 2023 AND xtime >= 1771200000 AND xtime < 1771286400;
+
+UPDATE client_parameter SET value = '1' WHERE param = 'ENABLE_TIME_TRIGGERS';
--- a/Elwig/Services/SyncService.cs
+++ b/Elwig/Services/SyncService.cs
@@ -271,7 +271,11 @@ namespace Elwig.Services {
        }

        public static async Task<bool> ChangesAvailable(AppDbContext ctx, string url, string username, string password) {
-            return await ctx.Members.AnyAsync(ChangedMembers) || await ctx.Deliveries.AnyAsync(ChangedDeliveries) || (Utils.HasInternetConnectivity() && (await GetFilesToImport(url, username, password)).Count > 0);
+            try {
+                return await ctx.Members.AnyAsync(ChangedMembers) || await ctx.Deliveries.AnyAsync(ChangedDeliveries) || (Utils.HasInternetConnectivity() && (await GetFilesToImport(url, username, password)).Count > 0);
+            } catch {
+                return false;
+            }
        }
    }
 }
--- a/Elwig/ViewModels/PaymentVariantsViewModel.cs
+++ b/Elwig/ViewModels/PaymentVariantsViewModel.cs
@@ -14,7 +14,7 @@ namespace Elwig.ViewModels {
        private IEnumerable<PaymentVar> _paymentVariants = [];

        public BillingData? BillingData;
-        public bool SeasonLocked;
+        public bool SeasonLocked = false;  // never locked
        public bool WeightModifierChanged;

        [ObservableProperty]
--- a/Elwig/Windows/AboutWindow.xaml
+++ b/Elwig/Windows/AboutWindow.xaml
@@ -22,7 +22,7 @@
            Programmiersprache: C#<LineBreak/>
            Framework: Windows Presentation Framework (WPF)<LineBreak/>
            Datenbank: <Hyperlink NavigateUri="https://sqlite.org/" RequestNavigate="Hyperlink_RequestNavigate">SQLite</Hyperlink><LineBreak/>
-            PDF-Erstellung: <Hyperlink NavigateUri="https://weasyprint.org/" RequestNavigate="Hyperlink_RequestNavigate">WeasyPrint</Hyperlink>, <Hyperlink NavigateUri="https://github.com/toddams/RazorLight" RequestNavigate="Hyperlink_RequestNavigate">RazorLight</Hyperlink>, <Hyperlink NavigateUri="https://github.com/pvginkel/PdfiumViewer" RequestNavigate="Hyperlink_RequestNavigate">PdfiumViewer</Hyperlink><LineBreak/>
+            PDF-Erstellung: <Hyperlink NavigateUri="https://itextpdf.com/" RequestNavigate="Hyperlink_RequestNavigate">iText</Hyperlink>, <Hyperlink NavigateUri="https://github.com/toddams/RazorLight" RequestNavigate="Hyperlink_RequestNavigate">RazorLight</Hyperlink>, <Hyperlink NavigateUri="https://github.com/bblanchon/pdfium-binaries" RequestNavigate="Hyperlink_RequestNavigate">Pdfium</Hyperlink><LineBreak/>
            Paketierung: <Hyperlink NavigateUri="https://www.firegiant.com/wixtoolset/" RequestNavigate="Hyperlink_RequestNavigate">WiX Toolset</Hyperlink>
        </TextBlock>

--- a/Elwig/Windows/MailWindow.xaml
+++ b/Elwig/Windows/MailWindow.xaml
@@ -69,7 +69,7 @@
                               Grid.Column="0" Margin="10,8,10,10"/>
                        <ListBox x:Name="AvaiableDocumentsList"
                                 Grid.Column="0" Margin="10,30,10,10"
-                                 SelectionChanged="AvaiableDocumentsList_SelectionChanged"/>
+                                 SelectionChanged="AvaiableDocumentsList_SelectionChanged" MouseDoubleClick="AvaiableDocumentsList_MouseDoubleClick"/>

                        <Button x:Name="DocumentAddButton" Content="&#xF0AF;" FontFamily="Segoe MDL2 Assets" FontSize="14"
                                Grid.Column="1" Margin="0,0,0,30" VerticalAlignment="Center" Height="25" IsEnabled="False"
@@ -82,7 +82,7 @@
                               Grid.Column="2" Margin="10,8,10,10"/>
                        <ListBox x:Name="SelectedDocumentsList" DisplayMemberPath="Name"
                                 Grid.Column="2" Margin="10,30,10,37"
-                                 SelectionChanged="SelectedDocumentsList_SelectionChanged">
+                                 SelectionChanged="SelectedDocumentsList_SelectionChanged" MouseDoubleClick="SelectedDocumentsList_MouseDoubleClick">
                            <ListBox.InputBindings>
                                <KeyBinding Key="Delete" Command="{Binding Path=DeleteCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>
                            </ListBox.InputBindings>
@@ -138,58 +138,61 @@
                            <RadioButton GroupName="Recipients" x:Name="RecipientsNonDeliveryMembersInput" Content="Nicht-Lieferanten der Saison"
                                         Margin="10,90,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
-                            <RadioButton GroupName="Recipients" x:Name="RecipientsCustomInput" Content="Benutzerdefiniert"
+                            <RadioButton GroupName="Recipients" x:Name="RecipientsCreditMembersInput" Content="Empfänger von Gutschriften"
                                         Margin="10,110,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+                            <RadioButton GroupName="Recipients" x:Name="RecipientsCustomInput" Content="Benutzerdefiniert"
+                                         Margin="10,130,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>

-                            <Label Content="Zwst.:" x:Name="MemberBranchLabel" Margin="10,140,0,10"/>
+                            <Label Content="Zwst.:" x:Name="MemberBranchLabel" Margin="10,160,0,10"/>
                            <ctrl:CheckComboBox x:Name="MemberBranchInput" AllItemsSelectedContent="Alle Stammzweigstellen" Delimiter=", " DisplayMemberPath="Name"
-                                                Margin="50,140,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                                Margin="50,160,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
                                                SelectionChanged="MemberInput_SelectionChanged"/>

-                            <Label Content="Gem.:" x:Name="MemberKgLabel" Margin="10,170,0,10"/>
+                            <Label Content="Gem.:" x:Name="MemberKgLabel" Margin="10,190,0,10"/>
                            <ctrl:CheckComboBox x:Name="MemberKgInput" AllItemsSelectedContent="Alle Stammgemeinden" Delimiter=", " DisplayMemberPath="Name"
                                                IsSelectAllActive="True" SelectAllContent="Alle Stammgemeinden"
-                                                Margin="50,170,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                                Margin="50,190,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
                                                SelectionChanged="MemberInput_SelectionChanged"/>

-                            <Label Content="Bio-Betrieb:" x:Name="MemberOrganicLabel" Margin="10,200,0,10"/>
+                            <Label Content="Bio-Betrieb:" x:Name="MemberOrganicLabel" Margin="10,220,0,10"/>
                            <RadioButton x:Name="MemberOrganicYesInput" Content="Ja" GroupName="MemberOrganic"
-                                         Margin="80,205,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="80,225,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>
                            <RadioButton x:Name="MemberOrganicNoInput" Content="Nein" GroupName="MemberOrganic"
-                                         Margin="125,205,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="125,225,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>
                            <RadioButton x:Name="MemberOrganicIndifferentInput" Content="Egal" GroupName="MemberOrganic"
-                                         Margin="180,205,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="180,225,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>

-                            <Label Content="Funktionär:" x:Name="MemberFunktionärLabel" Margin="10,230,0,10"/>
+                            <Label Content="Funktionär:" x:Name="MemberFunktionärLabel" Margin="10,250,0,10"/>
                            <RadioButton x:Name="MemberFunktionärYesInput" Content="Ja" GroupName="MemberFunktionär"
-                                         Margin="80,235,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="80,255,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>
                            <RadioButton x:Name="MemberFunktionärNoInput" Content="Nein" GroupName="MemberFunktionär"
-                                         Margin="125,235,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="125,255,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>
                            <RadioButton x:Name="MemberFunktionärIndifferentInput" Content="Egal" GroupName="MemberFunktionär"
-                                         Margin="180,235,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                         Margin="180,255,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
                                         Checked="MemberInput_Checked"/>

-                            <Label Content="Vtrg.:" x:Name="MemberAreaComLabel" Margin="10,260,0,10"/>
+                            <Label Content="Vtrg.:" x:Name="MemberAreaComLabel" Margin="10,280,0,10"/>
                            <ctrl:CheckComboBox x:Name="MemberAreaComInput" AllItemsSelectedContent="Alle Vertragsarten" Delimiter=", " DisplayMemberPath="VtrgId"
                                                IsSelectAllActive="True" SelectAllContent="Alle Vertragsarten"
-                                                Margin="50,260,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                                Margin="50,280,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
                                                SelectionChanged="MemberInput_SelectionChanged"/>

-                            <Label Content="Tag:" x:Name="MemberDeliveryAncmtLabel" Margin="10,260,0,10"/>
+                            <Label Content="Tag:" x:Name="MemberDeliveryAncmtLabel" Margin="10,280,0,10"/>
                            <ctrl:CheckComboBox x:Name="MemberDeliveryAncmtInput" AllItemsSelectedContent="Alle Lesepläne" Delimiter=", " DisplayMemberPath="Identifier"
                                                IsSelectAllActive="True" SelectAllContent="Alle Lesepläne"
-                                                Margin="50,260,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                                Margin="50,280,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
                                                SelectionChanged="MemberInput_SelectionChanged"/>

                            <ctrl:CheckComboBox x:Name="MemberCustomInput" AllItemsSelectedContent="Alle Mitglieder" Delimiter=", " DisplayMemberPath="AdministrativeName"
                                                IsSelectAllActive="True" SelectAllContent="Alle Mitglieder"
-                                                Margin="10,140,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                                Margin="10,160,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
                                                SelectionChanged="MemberInput_SelectionChanged"/>
                        </Grid>
                    </GroupBox>
--- a/Elwig/Windows/MailWindow.xaml.cs
+++ b/Elwig/Windows/MailWindow.xaml.cs
@@ -333,7 +333,35 @@ namespace Elwig.Windows {
            }
        }

-        private async void DocumentAddButton_Click(object sender, RoutedEventArgs evt) {
+        private void AvaiableDocumentsList_MouseDoubleClick(object sender, MouseEventArgs evt) {
+            if (evt.LeftButton != MouseButtonState.Pressed) return;
+            var src = evt.OriginalSource;
+            if (src is Border b) {
+                src = (b.Child as ContentPresenter)?.Content.ToString();
+            } else if (src is TextBlock t) {
+                src = t.Text;
+            } else {
+                return;
+            }
+            AvaiableDocumentsList.SelectedIndex = AvaiableDocumentsList.ItemsSource.Cast<object?>().ToList().IndexOf(src);
+            DocumentAddButton_Click(sender, null);
+        }
+
+        private void SelectedDocumentsList_MouseDoubleClick(object sender, MouseEventArgs evt) {
+            if (evt.LeftButton != MouseButtonState.Pressed) return;
+            var src = evt.OriginalSource;
+            if (src is Border b) {
+                src = (b.Child as ContentPresenter)?.Content.ToString();
+            } else if (src is TextBlock t) {
+                src = t.Text;
+            } else {
+                return;
+            }
+            SelectedDocumentsList.SelectedItem = SelectedDocs.FirstOrDefault(d => d.Name == (string?)src);
+            DocumentRemoveButton_Click(sender, null);
+        }
+
+        private async void DocumentAddButton_Click(object sender, RoutedEventArgs? evt) {
            var idx = AvaiableDocumentsList.SelectedIndex;
            using var ctx = new AppDbContext();
            if (AvaiableDocumentsList.SelectedItem is not string s)
@@ -347,13 +375,13 @@ namespace Elwig.Windows {
                var name = s.Split(" – ")[^1];
                var pv = await ctx.PaymentVariants.SingleAsync(v => v.Year == Year && v.Name == name)!;
                SelectedDocs.Add(new(DocType.CreditNote, s, (pv.Year, pv.AvNr)));
-                RecipientsDeliveryMembersInput.IsChecked = true;
+                RecipientsCreditMembersInput.IsChecked = true;
            }
            SelectedDocumentsList.SelectedIndex = SelectedDocs.Count - 1;
            await UpdateRecipients(ctx);
        }

-        private async void DocumentRemoveButton_Click(object sender, RoutedEventArgs evt) {
+        private async void DocumentRemoveButton_Click(object sender, RoutedEventArgs? evt) {
            DeleteCommand.Execute(null);
            using var ctx = new AppDbContext();
            await UpdateRecipients(ctx);
@@ -454,8 +482,11 @@ namespace Elwig.Windows {
                    query = query.Where(m => m.Deliveries.Any(d => d.Year == Year));
                } else if (RecipientsNonDeliveryMembersInput.IsChecked == true) {
                    query = query.Where(m => m.IsActive && !m.Deliveries.Any(d => d.Year == Year));
-                } else if  (RecipientsActiveMembersInput.IsChecked == true && SelectedDocs.Any(d => d.Type == DocType.DeliveryConfirmation || d.Type == DocType.CreditNote)) {
+                } else if (RecipientsActiveMembersInput.IsChecked == true && SelectedDocs.Any(d => d.Type == DocType.DeliveryConfirmation || d.Type == DocType.CreditNote)) {
                    query = query.Where(m => m.IsActive || m.Deliveries.Any(d => d.Year == Year));
+                } else if (RecipientsCreditMembersInput.IsChecked == true) {
+                    var avnrs = SelectedDocs.Where(d => d.Type == DocType.CreditNote).Select(d => (((int,int)?)d.Details)?.Item2).ToList();
+                    query = query.Where(m => m.Credits.Any(c => c.Year == Year && avnrs.Contains(c.AvNr)));
                } else {
                    query = query.Where(m => m.IsActive);
                }
@@ -756,7 +787,7 @@ namespace Elwig.Windows {

            var hasPreviewDocs = memberDocs.Any(m => m.Docs.Any(d => d.Doc.IsPreview));
            if (hasPreviewDocs) {
-                var res = MessageBox.Show("Einige der ausgewählten Dokumente sind nur als vorläufig zu betrachten und können daher nicht verschickt/ausgedruckt werden!\n\nDies könnte an einer noch nicht festgesetzen Auszahlungsvariante liegen.\n\nSoll mit dem Generieren fortgefahren werden?",
+                var res = MessageBox.Show("Einige der ausgewählten Dokumente sind nur als vorläufig zu betrachten und können daher nicht verschickt/ausgedruckt werden!\n\nDies könnte an einer noch nicht festgesetzen Auszahlungsvariante liegen oder daran, dass nicht alle Adressaten/Empfänger eine Traubengutschrift erhalten\n(\"Empfänger von Gutschriften\").\n\nSoll mit dem Generieren fortgefahren werden?",
                    "Vorläufige Dokumente", MessageBoxButton.OKCancel, MessageBoxImage.Warning, MessageBoxResult.Cancel);
                if (res != MessageBoxResult.OK) {
                    UnlockInputs();
@@ -1014,7 +1045,7 @@ namespace Elwig.Windows {
            var pv = ctx.PaymentVariants.Single(v => v.Year == Year && v.Name == name)!;
            SelectedDocs.Add(new(DocType.CreditNote, s, (pv.Year, pv.AvNr)));
            SelectedDocumentsList.SelectedIndex = SelectedDocs.Count - 1;
-            RecipientsDeliveryMembersInput.IsChecked = true;
+            RecipientsCreditMembersInput.IsChecked = true;
        }

        private void DocumentInput_TextChanged(object sender, TextChangedEventArgs evt) {
--- a/Elwig/Windows/MainWindow.xaml
+++ b/Elwig/Windows/MainWindow.xaml
@@ -248,7 +248,7 @@
                <Button x:Name="BreakdownButton"
                        Click="BreakdownButton_Click"
                        Margin="195,90,0,10" Width="190" Padding="3,5,5,5"
-                        ToolTip="Aufschlüsselung der Menge nach Zweigstelle, Mitglied, Sorte, Attribut/Bewirt., Qualitätsstufe, gebunden/ungebunden">
+                        ToolTip="Aufschlüsselung der Menge nach Zweigstelle, Sorte, Attribut/Bewirt., Qualitätsstufe, gebunden/ungebunden">
                    <Grid>
                        <TextBlock FontFamily="Segoe MDL2 Assets" FontSize="16" Text="&#xE9F9;"
                                   TextAlignment="Left" HorizontalAlignment="Left" Padding="6.5,0.5,0,0"/>
--- a/Elwig/Windows/PaymentAdjustmentWindow.xaml.cs
+++ b/Elwig/Windows/PaymentAdjustmentWindow.xaml.cs
@@ -16,16 +16,14 @@ namespace Elwig.Windows {
    public partial class PaymentAdjustmentWindow : ContextWindow {

        public readonly int Year;
-        public readonly bool SeasonLocked;
+        public readonly bool SeasonLocked = false;  // never locked

        public Dictionary<int, PaymentCustom>? CustomPayments;

        public PaymentAdjustmentWindow(int year) {
            InitializeComponent();
            Year = year;
-            using (var ctx = new AppDbContext()) {
-                SeasonLocked = ctx.Seasons.Find(Year + 1) != null;
-            }
+            // using (var ctx = new AppDbContext()) { SeasonLocked = ctx.Seasons.Find(Year + 1) != null; }
            Title = $"Auszahlung anpassen - Lese {Year} - Elwig";
            AutoAdjustBsButton.IsEnabled = !SeasonLocked;
            UnAdjustBsButton.IsEnabled = !SeasonLocked;
--- a/Elwig/Windows/PaymentVariantsWindow.xaml.cs
+++ b/Elwig/Windows/PaymentVariantsWindow.xaml.cs
@@ -1,12 +1,9 @@
 using Elwig.Helpers;
 using Elwig.Helpers.Billing;
-using Elwig.Helpers.Export;
-using Elwig.Models.Dtos;
 using Elwig.Models.Entities;
 using Elwig.Services;
 using Elwig.ViewModels;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.Win32;
 using System;
 using System.Linq;
 using System.Text.Json;
@@ -35,9 +32,7 @@ namespace Elwig.Windows {
            CommandBindings.Add(new CommandBinding(CtrlÜ, Menu_EbicsSave_Click));
            CommandBindings.Add(new CommandBinding(CtrlShiftP, Menu_SummaryPrint_Click));
            Year = year;
-            using (var ctx = new AppDbContext()) {
-                ViewModel.SeasonLocked = ctx.Seasons.Find(Year + 1) != null;
-            }
+            // using (var ctx = new AppDbContext()) { ViewModel.SeasonLocked = ctx.Seasons.Find(Year + 1) != null; }
            Title = $"Auszahlungsvarianten - Lese {Year} - Elwig";
            if (!App.Config.Debug) {
                DataInput.Visibility = Visibility.Hidden;
--- a/Installer/Files/WinziPrint.exe
+++ b/Installer/Files/WinziPrint.exe
--- a/Installer/Installer.wixproj
+++ b/Installer/Installer.wixproj
@@ -35,6 +35,5 @@
  </Target>
  <ItemGroup>
    <None Include="Files\config.ini" />
-    <None Include="Files\WinziPrint.exe" />
  </ItemGroup>
 </Project>
--- a/Installer/MainComponents.wxs
+++ b/Installer/MainComponents.wxs
@@ -7,9 +7,6 @@
      <Component Directory="ConfigFolder" Permanent="true" NeverOverwrite="true">
        <File Source="$(ProjectDir)\Files\config.ini" Id="config.ini"/>
      </Component>
-      <Component Directory="InstallFolder">
-        <File Source="$(ProjectDir)\Files\WinziPrint.exe" Id="WinziPrint.exe"/>
-      </Component>
    </ComponentGroup>
  </Fragment>
 </Wix>
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ About
 **Product:** Elwig  
 **Description:** Electronic Management for Vintners' Cooperatives  
 **Type:** ERP system  
-**Version:** 1.0.3.2 ([Changelog](./CHANGELOG.md))  
+**Version:** 1.0.3.4 ([Changelog](./CHANGELOG.md))  
 **License:** [GNU General Public License 3.0 (GPLv3)](./LICENSE)  
 **Website:** https://elwig.at/  
 **Source code:** https://git.necronda.net/winzer/elwig  
@@ -33,7 +33,7 @@ Packaging: [WiX Toolset](https://www.firegiant.com/wixtoolset/)
 **Produkt:** Elwig  
 **Beschreibung:** Elektronische Winzergenossenschaftsverwaltung  
 **Typ:** Warenwirtschaftssystem (ERP-System)  
-**Version:** 1.0.3.2 ([Änderungsprotokoll](./CHANGELOG.md))  
+**Version:** 1.0.3.4 ([Änderungsprotokoll](./CHANGELOG.md))  
 **Lizenz:** [GNU General Public License 3.0 (GPLv3)](./LICENSE)  
 **Website:** https://elwig.at/  
 **Quellcode:** https://git.necronda.net/winzer/elwig  
@@ -43,5 +43,5 @@ Packaging: [WiX Toolset](https://www.firegiant.com/wixtoolset/)
 Programmiersprache: C#  
 Framework: Windows Presentation Framework (WPF)  
 Datenbank: [SQLite](https://sqlite.org/)  
-PDF-Erstellung: [WeasyPrint](https://weasyprint.org/), [RazorLight](https://github.com/toddams/RazorLight), [PdfiumViewer](https://github.com/pvginkel/PdfiumViewer)  
+PDF-Erstellung: [iText](https://itextpdf.com/), [RazorLight](https://github.com/toddams/RazorLight), [Pdfium](https://github.com/bblanchon/pdfium-binaries)  
 Paketierung: [WiX Toolset](https://www.firegiant.com/wixtoolset/)
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -22,13 +22,13 @@
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
    <PackageReference Include="Appium.WebDriver" Version="4.4.5" />
    <PackageReference Include="NReco.PdfRenderer" Version="1.6.0" />
-    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit" Version="4.5.0" />
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    <PackageReference Include="NUnit.Analyzers" Version="4.11.2">
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      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="6.0.4">
+    <PackageReference Include="coverlet.collector" Version="8.0.0">
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      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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Author	SHA1	Message	Date
Lorenz Stechauner	d8c967b2f2	Printing: Replace WinziPrint with iText Some checks failed Test / Run tests (push) Failing after 2m6s Details	2026-02-25 10:58:37 +01:00
Lorenz Stechauner	1108427023	[#74 ] Weighing: Try to reconnect tcp scales on first error All checks were successful Test / Run tests (push) Successful in 3m0s Details	2026-02-25 10:57:44 +01:00
Lorenz Stechauner	b58dee6d3f	Bump version to 1.0.3.4 All checks were successful Deploy / Build and Deploy (push) Successful in 2m28s Details	2026-02-19 19:33:22 +01:00
Lorenz Stechauner	0e2b004b0d	Elwig: Update dependencies All checks were successful Test / Run tests (push) Successful in 2m46s Details	2026-02-19 19:26:39 +01:00
Lorenz Stechauner	19c3322ef2	Tests: Update dependencies	2026-02-19 19:26:29 +01:00
Lorenz Stechauner	6f081811c4	MailWindow: Allow users to double click on avaiable/selected documents All checks were successful Test / Run tests (push) Successful in 2m58s Details	2026-02-19 18:10:26 +01:00
Lorenz Stechauner	432c511b85	Billing: Create credit notes only for members who receive a payment	2026-02-19 18:10:22 +01:00
Lorenz Stechauner	7e22759c33	PaymentVariantsWindow: Never lock seasons All checks were successful Test / Run tests (push) Successful in 2m27s Details	2026-02-19 16:12:54 +01:00
Lorenz Stechauner	a47904cf0b	SyncService: Catch exceptions in ChangesAvailable() All checks were successful Test / Run tests (push) Successful in 3m16s Details	2026-02-19 15:59:23 +01:00
Lorenz Stechauner	6818491ae3	Export: Fix importing delivery parts with no kgnr	2026-02-19 15:58:51 +01:00
Lorenz Stechauner	23db4de1ee	Database: Fix xtime/mtime for delivery parts All checks were successful Test / Run tests (push) Successful in 3m17s Details	2026-02-19 15:31:36 +01:00
Lorenz Stechauner	9e5f709d42	DeliveryConfirmation: Show 'Davon abgewertet' below total sum	2026-02-19 15:26:09 +01:00
Lorenz Stechauner	4cd7ef85a1	Printing: Replace PdfiumViewer with native pdfium.dll binary All checks were successful Test / Run tests (push) Successful in 3m47s Details	2026-02-18 23:02:18 +01:00
Lorenz Stechauner	2c0b000073	MainWindow: Fix Tooltip for 'Sorten-/Qual.aufschlüssel.' Button All checks were successful Test / Run tests (push) Successful in 2m31s Details	2026-02-18 23:01:35 +01:00
Lorenz Stechauner	f1737af2a2	Bump version to 1.0.3.3 All checks were successful Test / Run tests (push) Successful in 2m26s Details Deploy / Build and Deploy (push) Successful in 2m21s Details	2026-02-05 23:52:33 +01:00
Thomas Hilscher	8f423e3e92	Pdfium: Use updated fork of PdfiumViewer All checks were successful Test / Run tests (push) Successful in 2m46s Details	2026-02-05 23:21:28 +01:00
Thomas Hilscher	c8911c0acb	Pdfium: Explicitly add WindowsForms after dotnet 10 upgrade All checks were successful Test / Run tests (push) Successful in 3m5s Details	2026-02-05 22:50:06 +01:00