From e204cd4538fb4f6325ea844dc79b4d8f55a9b5c8 Mon Sep 17 00:00:00 2001
From: claudiamurialdo <33756655+claudiamurialdo@users.noreply.github.com>
Date: Sun, 5 Apr 2026 10:22:10 -0300
Subject: [PATCH] Fix GxDrawBitMap aspectRatio and image format detection in
 PDFPig

---
 .../GxPdfReportsCS/PDFReportPDFPig.cs         | 97 ++++++++++++-------
 1 file changed, 60 insertions(+), 37 deletions(-)

diff --git a/dotnet/src/dotnetcore/GxPdfReportsCS/PDFReportPDFPig.cs b/dotnet/src/dotnetcore/GxPdfReportsCS/PDFReportPDFPig.cs
index 6fd6d90c1..84933d02e 100644
--- a/dotnet/src/dotnetcore/GxPdfReportsCS/PDFReportPDFPig.cs
+++ b/dotnet/src/dotnetcore/GxPdfReportsCS/PDFReportPDFPig.cs
@@ -195,26 +195,41 @@ public override void GxDrawBitMap(string bitmap, int left, int top, int right, i
 		{
 			try
 			{
-				string imageType = Path.GetExtension(bitmap).Substring(1);
+				string imageType = Path.GetExtension(bitmap).Substring(1).ToLowerInvariant();
 
 				float rightAux = (float)convertScale(right);
 				float bottomAux = (float)convertScale(bottom);
 				float leftAux = (float)convertScale(left);
 				float topAux = (float)convertScale(top);
-				
+
 				float llx = leftAux + leftMargin;
-				float lly = (float) pageBuilder.PageSize.TopRight.Y - bottomAux - topMargin - bottomMargin;
+				float lly = (float)pageBuilder.PageSize.TopRight.Y - bottomAux - topMargin - bottomMargin;
+				float boxWidth = rightAux - leftAux;
+				float boxHeight = bottomAux - topAux;
+
+				byte[] imageBytes = null;
+				try
+				{
+					imageBytes = LoadImageBytes(ref bitmap);
+				}
+				catch (Exception) { }
+
 				float width;
 				float height;
-				if (aspectRatio == 0)
+				if (aspectRatio == 0 || imageBytes == null)
 				{
-					width = rightAux - leftAux;
-					height = bottomAux - topAux;
+					width = boxWidth;
+					height = boxHeight;
 				}
 				else
 				{
-					width = (rightAux - leftAux) * aspectRatio;
-					height = (bottomAux - topAux) * aspectRatio;
+					using (var ms = new MemoryStream(imageBytes))
+					using (var bmp = new Bitmap(ms))
+					{
+						float scale = Math.Min(boxWidth / bmp.Width, boxHeight / bmp.Height);
+						width = bmp.Width * scale;
+						height = bmp.Height * scale;
+					}
 				}
 
 				PdfRectangle position = new PdfRectangle(llx, lly, llx + width, lly + height);
@@ -229,40 +244,18 @@ public override void GxDrawBitMap(string bitmap, int left, int top, int right, i
 				{
 					try
 					{
-						byte[] imageBytes;
-						if (!Path.IsPathRooted(bitmap))
+						if (imageBytes != null)
 						{
-							if (PathUtil.IsAbsoluteUrl(bitmap))
-							{
-								imageBytes = HttpHelper.DownloadFile(bitmap, out _);
-							}
-							else
-							{
-								string bitmapPath = Path.Combine(defaultRelativePrepend, bitmap);
-								if (File.Exists(bitmapPath))
-								{
-									imageBytes = File.ReadAllBytes(bitmapPath);
-									bitmap = bitmapPath;
-								}
-								else
-								{
-									bitmapPath = Path.Combine(webAppDir, bitmap);
-									imageBytes = File.ReadAllBytes(bitmapPath);
-									bitmap = bitmapPath;
-								}
-							}
+							bool isJpeg = imageType == "jpeg" || imageType == "jpg";
+							image = isJpeg ? pageBuilder.AddJpeg(imageBytes, position) : pageBuilder.AddPng(imageBytes, position);
 						}
-						else
+						else if (PathUtil.IsAbsoluteUrl(bitmap))
 						{
-							imageBytes = File.ReadAllBytes(bitmap);
+							image = AddImageFromURL(bitmap, position);
 						}
-						image = imageType == "jpeg" ? pageBuilder.AddJpeg(imageBytes, position) : pageBuilder.AddPng(imageBytes, position);
-					}
-					catch (Exception)
-					{
-						image = AddImageFromURL(bitmap, position);
 					}
-					if (image == null)
+					catch (Exception) { }
+					if (image == null && PathUtil.IsAbsoluteUrl(bitmap))
 					{
 						image = AddImageFromURL(bitmap, position);
 					}
@@ -300,6 +293,36 @@ private AddedImage AddImageFromURL(string url, PdfRectangle position)
 			return image;
 		}
 
+		private byte[] LoadImageBytes(ref string bitmap)
+		{
+			if (!Path.IsPathRooted(bitmap))
+			{
+				if (PathUtil.IsAbsoluteUrl(bitmap))
+				{
+					return HttpHelper.DownloadFile(bitmap, out _);
+				}
+				else
+				{
+					string bitmapPath = Path.Combine(defaultRelativePrepend, bitmap);
+					if (File.Exists(bitmapPath))
+					{
+						bitmap = bitmapPath;
+						return File.ReadAllBytes(bitmapPath);
+					}
+					else
+					{
+						bitmapPath = Path.Combine(webAppDir, bitmap);
+						bitmap = bitmapPath;
+						return File.ReadAllBytes(bitmapPath);
+					}
+				}
+			}
+			else
+			{
+				return File.ReadAllBytes(bitmap);
+			}
+		}
+
 		public override void GxAttris(string fontName, int fontSize, bool fontBold, bool fontItalic, bool fontUnderline, bool fontStrikethru, int pen, int foreRed, int foreGreen, int foreBlue, int backMode, int backRed, int backGreen, int backBlue)
 		{
 			bool isCJK = false;