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https://issues.apache.org/jira/browse/PDFBOX-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042379#comment-14042379
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Tilman Hausherr commented on PDFBOX-2141:
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I committed a modified change in rev 1605137 for the trunk. I dropped the
isIdentity call because it won't be an identity transform most of the time, and
used a different call for the shape transform that is shorter (and is already
used elsewhere). Thanks again for your help!
> Shading not applied to text
> ---------------------------
>
> Key: PDFBOX-2141
> URL: https://issues.apache.org/jira/browse/PDFBOX-2141
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 1.8.5, 1.8.6, 1.8.7, 2.0.0
> Reporter: Petr Slaby
> Priority: Minor
> Attachments: 000004_ShadingPatternTextPDF.pdf, PDFBOX-1917.pdf-1.png,
> PDFBOX-1917.pdf-1.png-diff.png, PDFBOX-1917.pdf-9.png,
> PDFBOX-1917.pdf-9.png-diff.png, PDFBOX-2135.pdf-2.png,
> PDFBOX-2135.pdf-2.png-diff.png, PageDrawer.writeFont.java.patch,
> pattern-shading-2-4-idMatrix.pdf, pattern-shading-2-4-idMatrix.pdf,
> pattern-shading-2-4-idMatrix1.jpg, pattern-shading-2-4-noMatrix.pdf,
> pattern-shading-2-4.ps, pattern-shading-2-4.ps
>
>
> The attached PDF draws a text filled with horizontal shading going from red
> to blue. When rendered via PDFBox, the text is completely filled with red.
> The problem is that AxialShadingContext#getRaster() gets called with
> positions that completely fell outside of the range stored in its coords[]
> field. The fix seems to be to set glyph transform rather than graphics2d
> transform in PageDrawer#writeText() as shown in the attached patch.
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