From e20183d4510d0a5f690ae5748102932cd4a43aa0 Mon Sep 17 00:00:00 2001
From: jesusr <jesusr@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Sat, 31 Mar 2012 18:08:22 +0000
Subject: [PATCH] PowerPDF: use DeviceGray for grayscale JPEG images

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2374 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/powerpdf/PdfJpegImage.pas | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/components/powerpdf/PdfJpegImage.pas b/components/powerpdf/PdfJpegImage.pas
index 30b5e3394..5f1897632 100644
--- a/components/powerpdf/PdfJpegImage.pas
+++ b/components/powerpdf/PdfJpegImage.pas
@@ -55,7 +55,10 @@ begin
     begin
       AddItem('Type', TPdfName.CreateName('XObject'));
       AddItem('Subtype', TPdfName.CreateName('Image'));
-      AddItem('ColorSpace', TPdfName.CreateName('DeviceRGB'));
+      if TJPegImage(AImage).GrayScale then
+        AddItem('ColorSpace', TPdfName.CreateName('DeviceGray'))
+      else
+        AddItem('ColorSpace', TPdfName.CreateName('DeviceRGB'));
       AddItem('Width', TPdfNumber.CreateNumber(AImage.Width));
       AddItem('Height', TPdfNumber.CreateNumber(AImage.Height));
       AddItem('BitsPerComponent', TPdfNumber.CreateNumber(8));