Bug 690115

Summary: Differences in color between Ghostscript and Acrobat
Product: Ghostscript Reporter: Marcos H. Woehrmann <marcos.woehrmann>
Component: ColorAssignee: Michael Vrhel <michael.vrhel>
Status: NOTIFIED FIXED    
Severity: normal    
Priority: P2    
Version: master   
Hardware: Macintosh   
OS: MacOS X   
Customer: 190 Word Size: ---

Description Marcos H. Woehrmann 2008-10-09 09:26:25 UTC 
The customer reports and I've verified that there are several differences in the rendering of the attached 
file PDF between Ghostscript and Acrobat, these are:

1. The top green square in the lower left hand corner is different in color than the square below it with 
Ghostscript output but not with Acrobat.

2.  The wavy line at the top of the page is the wrong color, it's solid black with Ghostscript and shaded 
brown with Acrobat.

3.  The same wavy brown line is not a uniform color with Ghostscript; this problem didn't not exist in 
r8145 and earlier.

See the attached screenshot.png for clarification.

Apple preview is the same as Acrobat in these areas, so I presume the Ghostscript output is incorrect.

The command line I'm using for testing:

  bin/gs -sDEVICE=tiff24nc -o test.tif ./overovertrans1punt7.pdf
Comment 1 Marcos H. Woehrmann 2008-10-09 09:26:58 UTC 
Created attachment 4482 [details]
overovertrans1punt7.pdf
Comment 2 Marcos H. Woehrmann 2008-10-09 09:27:38 UTC 
Created attachment 4483 [details]
screenshot.png
Comment 3 Ray Johnston 2008-10-09 09:49:59 UTC 
Testing with the SMask changes (in work) fixes all of these problems. This will
make a good addition to our test suite.
Comment 4 Marcos H. Woehrmann 2008-10-09 10:57:43 UTC 
Created attachment 4484 [details]
greensquares.pdf

Simplified file containing the green squares.
Comment 5 Marcos H. Woehrmann 2008-10-09 10:58:13 UTC 
Created attachment 4485 [details]
wavyline.pdf

SImplified file containing just the wavy line.
Comment 6 Michael Vrhel 2009-02-16 20:25:58 UTC 
These render correctly with the soft mask branch.
Comment 7 Michael Vrhel 2009-04-28 15:18:59 UTC 
This is fixed with the merge of the softmask branch.
Comment 8 Marcos H. Woehrmann 2011-09-18 21:47:23 UTC 
Changing customer bugs that have been resolved more than a year ago to closed.