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https://issues.apache.org/jira/browse/PDFBOX-3501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15500774#comment-15500774
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Andreas Lehmkühler commented on PDFBOX-3501:
--------------------------------------------
We are facing 2 more or less related issues here
- the rendering of page 5 doesn't work correct (the colored background is
missing), a blending issue?
- transforming a full colored image to b/w may look "suboptimal" especially if
it contains color gradients
Using grayscale instead of b/w delivers much better results.
> java.lang.ArrayIndexOutOfBoundsException when rendering to bitonal image type
> -----------------------------------------------------------------------------
>
> Key: PDFBOX-3501
> URL: https://issues.apache.org/jira/browse/PDFBOX-3501
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.2, 2.0.3, 2.1.0
> Reporter: mark
> Attachments: PDFBOX-3501.pdf, PdfToTiffConverter.java, error.pdf
>
>
> while using the PdfToTiffConverter i got an ArrayIndexOutOfBoundsException
> for the attached error.pdf file
> Tested with Version 2.0.0 and 2.0.2
> Stacktrace:
> java.lang.ArrayIndexOutOfBoundsException: 1
> At:
> java.awt.image.ColorModel.getNormalizedComponents(ColorModel.java:1197)
> At:
> java.awt.image.ColorModel.getNormalizedComponents(ColorModel.java:1439)
> At:
> org.apache.pdfbox.pdmodel.graphics.blend.BlendComposite$BlendCompositeContext.compose(BlendComposite.java:160)
> At: sun.java2d.loops.Blit$AnyBlit.Blit(Blit.java:179)
> At: sun.java2d.pipe.DrawImage.renderImageXform(DrawImage.java:546)
> At: sun.java2d.pipe.DrawImage.transformImage(DrawImage.java:264)
> At: sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:76)
> At: sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
> At: sun.java2d.pipe.ValidatePipe.copyImage(ValidatePipe.java:186)
> At: sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
> At: sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3445)
> At:
> org.apache.pdfbox.rendering.PageDrawer.showTransparencyGroup(PageDrawer.java:1154)
> At:
> org.apache.pdfbox.contentstream.operator.graphics.DrawObject.process(DrawObject.java:66)
> At:
> org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:815)
> At:
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:472)
> At:
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:446)
> At:
> org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:149)
> At: org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:189)
> At:
> org.apache.pdfbox.rendering.PDFRenderer.renderPage(PDFRenderer.java:208)
> At:
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:139)
> At:
> org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:94)
> At:
> org.monitoring.system.util.PdfToTiffConverter.convertPdfToTiff(PdfToTiffConverter.java:71)
> At:
> org.monitoring.system.util.PdfToTiffConverter.convertPdfToTiff(PdfToTiffConverter.java:44)
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