Bug 689288

Summary:	Transparency issue reading PDF
Product:	Ghostscript	Reporter:	Marcos H. Woehrmann <marcos.woehrmann>
Component:	PDF Interpreter	Assignee:	Alex Cherepanov <alex>
Status:	NOTIFIED FIXED
Severity:	normal	CC:	khullar.sunil
Priority:	P2
Version:	master
Hardware:	PC
OS:	Linux
Customer:	850	Word Size:	---
Attachments:	screenshot.png screenshot.png patch

Description Marcos H. Woehrmann 2007-06-19 10:50:08 UTC

The customer reports and I've verified that the attached PDF renders incorrectly
with gs8.57 compared to Adobe Acrobat.  In particular the 'autobahn' (the light
gray arc near the top of the screen) is not transparent when rendered with
Ghostscript (see attached screenshot.png).

The command line I used for testing:

  bin/gs -sDEVICE=ppmraw -sOutputFile=test.ppm -r20 ./11651.pdf

gshead and earlier versions of Ghostscript exhibit the same behaviour as gs8.57.

Comment 1 Marcos H. Woehrmann 2007-06-19 10:50:41 UTC

Created attachment 3036 [details]
11651.pdf

Comment 2 Marcos H. Woehrmann 2007-06-19 10:51:25 UTC

Created attachment 3037 [details]
screenshot.png

Comment 3 Marcos H. Woehrmann 2007-06-19 10:51:31 UTC

Created attachment 3038 [details]
screenshot.png

Comment 4 Ray Johnston 2007-06-26 09:37:14 UTC

Initially assign to Alex to see if the transparency is being invoked.

If it is, then reassign to Tim.

Comment 5 Alex Cherepanov 2007-06-27 16:06:09 UTC

Created attachment 3086 [details]
patch

Lower the PDF version searched for transparency features to 1.2 to handle
broken PDF files generated by SPIRIT 14.22.

Comment 6 Alex Cherepanov 2007-06-27 16:21:40 UTC

The patch is committed as a rev. 8082.
Regression testing shows no differences.