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https://issues.apache.org/jira/browse/PDFBOX-4159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maruan Sahyoun resolved PDFBOX-4159.
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Resolution: Fixed
resolving per users feedback
> PDFBox doesn't warn if Special graphics state operators are used in text mode
> -----------------------------------------------------------------------------
>
> Key: PDFBOX-4159
> URL: https://issues.apache.org/jira/browse/PDFBOX-4159
> Project: PDFBox
> Issue Type: Improvement
> Affects Versions: 2.0.8
> Reporter: ulrich gratz
> Assignee: Maruan Sahyoun
> Priority: Major
> Fix For: 2.0.10, 3.0.0 PDFBox
>
> Attachments: pdfa.pdf, screenshot-1.png, test.pdf
>
>
> When i use a large amount of {{AffineTransformations}} the resulting document
> will open in Acrobat Reader, but each time a warning is displayed, that there
> is a defect in the document. The code I use is like:
> {code:java}
> // BROKEN
> context.useFont(FontFace.FONT_TEXT);
> for (int i = 0; i < 80; i++) {
> context.contentStream.beginText();
> context.contentStream.saveGraphicsState();
> context.contentStream.transform(new
> Matrix(AffineTransform.getTranslateInstance(0, VIEWPORT_TOP - i * 5)));
> context.contentStream.showText("XXXXXXXXX");
> context.contentStream.restoreGraphicsState();
> context.contentStream.endText();
> }
> // WORKS
> context.useFont(FontFace.FONT_TEXT);
> for (int i = 0; i < 80; i++) {
> context.contentStream.saveGraphicsState();
> context.contentStream.beginText();
> context.contentStream.transform(new
> Matrix(AffineTransform.getTranslateInstance(0, VIEWPORT_TOP - i * 5)));
> context.contentStream.showText("XXXXXXXXX");
> context.contentStream.endText();
> context.contentStream.restoreGraphicsState();
> }
> {code}
> When i skip the transformations or reduce the amount to e.g. 30, everything
> is fine. The size of {{ty}} or page breaks do _not_ have an influence on the
> result, it seems to be the amount of transforms.
> I attached a simple PDF sporting the described effect. *Please note:* The
> effect only occurs in the standalone Acrobat Reader, not the acrobat browser
> plugin. So to see the error, download the PDF from this ticket and open it
> independently from the browser.
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