itext pdfimage library

2024-03-01 16:00:16 +01:00
parent 4cbbee5147
commit 0c24ec1cbb
9 changed files with 502 additions and 400 deletions
@@ -0,0 +1,60 @@
+using iText.Kernel.Pdf;
+using iText.Kernel.Pdf.Canvas.Parser;
+using iText.Kernel.Pdf.Canvas.Parser.Listener;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using iText.IO.Font;
+using System.Text.RegularExpressions;
+
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Drawing.Imaging;
+using System.Drawing.Text;
+
+namespace itext.pdfimage.Extensions
+{
+    public static class ConvertExtensions
+    {
+        public static IEnumerable<Bitmap> ConvertToBitmaps(this PdfDocument pdfDocument)
+        {
+            var converter = new PdfToImageConverter();
+            return converter.ConvertToBitmaps(pdfDocument);
+        }
+
+        public static Bitmap ConvertPageToBitmap(this PdfPage pdfPage)
+        {
+            var converter = new PdfToImageConverter();
+            return converter.ConvertToBitmap(pdfPage);
+        }
+
+        public static IEnumerable<Stream> ConvertToJpgStreams(this PdfDocument pdfDocument)
+        {
+            var converter = new PdfToImageConverter();
+            return converter.ConvertToJpgStreams(pdfDocument);
+        }
+
+        public static Stream ConvertPageToJpg(this PdfPage pdfPage)
+        {
+            var converter = new PdfToImageConverter();
+            return converter.ConvertToJpgStream(pdfPage);
+        }
+
+        internal static FontStyle GetFontStyle(this FontNames fontNames)
+        {
+            var fontname = fontNames.GetFontName();
+            var fontStyleRegex = Regex.Match(fontname, @"[-,][\w\s]+$");
+
+            if (fontStyleRegex.Success)
+            {
+                var result = fontStyleRegex.Value.ToLower();
+                if (result.Contains("bold"))
+                {
+                    return FontStyle.Bold;
+                }
+            }
+
+            return FontStyle.Regular;
+        }
+    }
+}