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https://issues.apache.org/jira/browse/PDFBOX-4627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16904624#comment-16904624
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Tilman Hausherr edited comment on PDFBOX-4627 at 1/2/25 8:00 PM:
-----------------------------------------------------------------
quick and dirty fix for processStreamOperators(), I may improve that a little
bit:
{code}
boolean process = true;
if (contentStream instanceof PDTilingPattern &&
((PDTilingPattern) contentStream).getPaintType() ==
PDTilingPattern.PAINT_UNCOLORED)
{
String name = ((Operator) token).getName();
if ("cs".equalsIgnoreCase(name) ||
"g".equalsIgnoreCase(name) ||
"k".equalsIgnoreCase(name) ||
"rg".equalsIgnoreCase(name) ||
"sc".equalsIgnoreCase(name) ||
"scn".equalsIgnoreCase(name))
{
process = false;
}
}
if (process)
{
processOperator((Operator) token, arguments);
}
{code}
Surprisingly, it's just your file that is affected. None of my 1000 test files
shows a change.
was (Author: tilman):
quick and dirty fix for processStreamOperators(), I may improve that a little
bit:
{code}
boolean process = true;
if (contentStream instanceof PDTilingPattern &&
((PDTilingPattern) contentStream).getPaintType() ==
PDTilingPattern.PAINT_UNCOLORED)
{
String name = ((Operator) token).getName();
if ("scn".equalsIgnoreCase(name) ||
"cs".equalsIgnoreCase(name) ||
"g".equalsIgnoreCase(name) ||
"k".equalsIgnoreCase(name) ||
"rg".equalsIgnoreCase(name) ||
"sc".equalsIgnoreCase(name) ||
"scn".equalsIgnoreCase(name))
{
process = false;
}
}
if (process)
{
processOperator((Operator) token, arguments);
}
{code}
Surprisingly, it's just your file that is affected. None of my 1000 test files
shows a change.
> Wrong color of uncolored tiling pattern
> ---------------------------------------
>
> Key: PDFBOX-4627
> URL: https://issues.apache.org/jira/browse/PDFBOX-4627
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.16
> Reporter: Jiri Kunhart
> Priority: Major
> Attachments: after_fix.png, before_fix.png,
> uncolored_tiling_pattern.patch, uncolored_tiling_pattern.pdf
>
>
> The attached pdf file with uncolored tiling pattern is rendered wrongly (see
> "before_fix.png"). The problem is that pattern stream contains
> /DevGrayCS cs
> which overwrites PDPattern color space stored in
> PDGraphicsState#nonStrokingColor. I did a small fix which ignores all
> settings of color space inside of uncolored tiling pattern stream and the
> result seems to be good (see "after_fix.png").
> Note: the pattern in the png file looks diferently than in the original pdf
> file, but this should be handled probably in the other issue.
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