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https://issues.apache.org/jira/browse/PDFBOX-4298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16590653#comment-16590653
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Tilman Hausherr commented on PDFBOX-4298:
-----------------------------------------
It should work now. Please retest with the newly available snapshot.
> NullPointerException when doing overlay
> ---------------------------------------
>
> Key: PDFBOX-4298
> URL: https://issues.apache.org/jira/browse/PDFBOX-4298
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 1.8.15, 2.0.11
> Reporter: Mikita Geer
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 1.8.16, 2.0.12, 3.0.0 PDFBox
>
> Attachments: NPE.pdf, pdf2.pdf
>
>
> When input pdf file for overlay contains empty page (with contents == null)
> like NPE.pdf file we get NullPointerException in Overlay.addOriginalContent
> method. It occurres even if we overlay over other than this empty page.
> Here's some sample code to reproduce the problem:
> {code:java}
> Overlay overlayObj = new Overlay();
> File file1 = new File("NPE.pdf");
> PDDocument originalDoc = PDDocument.load(file1);
> overlayObj.setOverlayPosition(Overlay.Position.FOREGROUND);
> overlayObj.setInputPDF(originalDoc);
> Map<Integer, String> ovmap = new HashMap<>();
> File file2 = new File("pdf2.pdf");
> ovmap.put(2, file2.getPath());
> overlayObj.overlay(ovmap);
> originalDoc.save("test__result.pdf");
> {code}
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