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https://issues.apache.org/jira/browse/PDFBOX-5559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17679727#comment-17679727
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Michael Klink commented on PDFBOX-5559:
---------------------------------------
Just like [~tilman] says, the attached files refer to a garbage-in/garbage-out
problem. Already the original file has an error which also is present in the
result file.
The other issue mentioned, though,
{quote}qpdf complains also about a different pdf (copyrighted) modified in
similar way. The warning reads:
{noformat}WARNING: file.pdf: reported number of objects (12991) is not one plus
the highest object number (12989){noformat}{quote}
might point to an actual issue. If you find a PDF reproducing the issue you can
share, please do so.
> QPDF prints warnings about a PDF modified by PDFBOX
> ----------------------------------------------------
>
> Key: PDFBOX-5559
> URL: https://issues.apache.org/jira/browse/PDFBOX-5559
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.27
> Reporter: menteith85
> Priority: Minor
> Attachments: sample.pdf, sample_modified.pdf, screenshot-1.png,
> screenshot-2.png
>
>
> Hi!
> I created a sample PDF file with PDAnnotationLink using PDFBox. Then I
> changed action from PDActionURI to PDActionGoTo. The modified pdf is
> correctly working in Okular (a pdf viewer for Linux) but *qpdf* (version
> 11.2.0) emits the following warning:
> {code:java}
> ❯ qpdf --linearize --replace-input sample_modified.pdf
> WARNING: sample_modified.pdf, object 2 0 at offset 88: kid 1 (from 0) appears
> more than once in the pages tree; creating a new page object as a copy
> qpdf: there are warnings; original file kept in
> sample_modified.pdf.~qpdf-orig
> qpdf: operation succeeded with warnings; resulting file may have some
> problems{code}
> Please find below the code I used to modify pdf. I can also provide code to
> create that pdf if needed.
> {code:java}
> final PDPage page = doc.getPage(0);
> final PDPageXYZDestination destination = new PDPageXYZDestination();
> destination.setPage(page);
> final PDActionGoTo action = new PDActionGoTo();
> action.setDestination(destination);
> final PDAnnotationLink annotationLink = new PDAnnotationLink();
> annotationLink.setAction(action);
> float X_MARGIN_LEFT = 50F;
> float BOX_WIDTH = 240F;
> float TEXT_LINE_HEIGHT = 14F;
> final PDRectangle position = new PDRectangle();
> final int x = 120;
> final int y = 120;
> position.setLowerLeftX(x);
> position.setLowerLeftY(y);
> position.setUpperRightX(X_MARGIN_LEFT + BOX_WIDTH);
> position.setUpperRightY(y + TEXT_LINE_HEIGHT);
> annotationLink.setRectangle(position);
> page.setAnnotations(List.of(annotationLink));
> doc.save("sample_modified.pdf");{code}
>
> *qpdf* complains also about a different pdf (copyrighted) modified in similar
> way. The warning reads:
> {code:java}
> WARNING: file.pdf: reported number of objects (12991) is not one plus the
> highest object number (12989){code}
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