The attached PDF file (which is a simplified version of the file originally submitted by the customer) renders with Ghostscript gs8.62 and head (r8604) with the background behind the text in black instead of white, Both Acrobat 8 and Apple Preview renders the file correctly. The command line I'm using for testing: bin/gs -sDEVICE=tiff24nc -o test.tif ./Temp00000b.pdf
Created attachment 3889 [details] Temp00000b.pdf
One of the images in the file has SMask but this fact is not detected by pageusestransparency procedure.
Improve detection of transparency usage. Search for transparency features in the resource chain of annotation appearance streams. http://ghostscript.com/pipermail/gs-cvs/2008-March/008198.html The patch is committed as a rev. 8612. Regression testing shows no differences.
*** Bug 689666 has been marked as a duplicate of this bug. ***