[PDFBOX-4029] Rendering transparency groups in patterns

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.7, 2.0.8
• Fix Version/s: 2.0.9, 3.0.0 PDFBox
• Component/s: Rendering
• Labels: patch
• Environment: Windows 10
• Flags: Patch
• Assignee: Tilman Hausherr
• Reporter: savan patel
• Created: 06/Dec/17 15:29
• Updated: 24/Mar/18 09:41
• Resolved: 09/Dec/17 16:04

Description

i have gone through the "PDFBOX-3000 Transparency Group issues"...
and there are some issues in pdfs that i have attached...

Every time showTransparencyGroup() method is called the current graphics is translated by (x*xScale and y*yScale) which i assume is wrong.
I think when transparencyGroup comes in pattern stream, then current graphics should not changed. as well as when patterns are nested then no need to change the parent graphics.

i tried to fix it. i have attached the patch...