valerybokov opened a new pull request, #529: URL: https://github.com/apache/pdfbox/pull/529
In PDFStreamEngine.processTransparencyGroup(), initialMatrix was captured from the CTM before the transparency group's own /Matrix entry got concatenated into it — the opposite order used by processStream() (the code path for ordinary, non-group forms). Per spec, a pattern's matrix maps pattern space to "the default coordinate system of the pattern's parent content stream," which must include that stream's own /Matrix. So any shading/tiling pattern used inside a transparency group that itself has a non-trivial /Matrix (like the reported case's 0.017 scale) gets positioned using the wrong reference matrix — off by exactly that scale factor. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
