Add Print/

WGneu/Print/Pdf.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Reflection.Metadata.Ecma335;
+using System.Text;
+using System.Threading.Tasks;
+using PuppeteerSharp;
+
+
+namespace WGneu.Print {
+    public static class Pdf {
+
+        private static readonly string CHROMIUM = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";
+        private static IBrowser? Browser = null;
+
+        public static async void Init() {
+            Browser = await Puppeteer.LaunchAsync(new LaunchOptions {
+                Headless = true,
+                ExecutablePath = CHROMIUM,
+            });
+        }
+
+        public static async Task Convert(string path_html, string path_pdf) {
+            if (Browser == null)
+                Init();
+
+            using var page = await Browser?.NewPageAsync();
+            await page.GoToAsync("file://" + path_html);
+            await page.WaitForFunctionAsync("() => window.finished");
+            await page.PdfAsync(path_pdf);
+        }
+    }
+}