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https://issues.apache.org/jira/browse/PDFBOX-5927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-5927:
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    Attachment: screenshot-1.png

> Saved file has "Invalid dictionary" when reloading
> --------------------------------------------------
>
>                 Key: PDFBOX-5927
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5927
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Writing
>    Affects Versions: 3.0.3 PDFBox, 4.0.0
>            Reporter: Tilman Hausherr
>            Priority: Major
>         Attachments: ObjStm.txt, SO79293670-saved.pdf, SO79293670.pdf, 
> screenshot-1.png, screenshot-2.png
>
>
> {code:java}
> try (PDDocument doc = Loader.loadPDF(new File("SO79293670.pdf")))
> {
>     PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
>     PDCheckBox cb = (PDCheckBox) acroForm.getField("chkPrivacy1");
>     cb.check();
>     doc.save(new File("SO79293670-saved.pdf")); //, 
> CompressParameters.NO_COMPRESSION);
> }
> try (PDDocument doc = Loader.loadPDF(new 
> File("c:/users/tilman/downloads","SO79293670-saved.pdf")))
> {
>     PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
>     PDCheckBox cb = (PDCheckBox) acroForm.getField("chkPrivacy1");
>     System.out.println(cb.isChecked()); // should be true
> }
> {code}
> The output:
> {noformat}
> 19.12.2024 16:48:15 WARN  pdfparser.BaseParser.parseCOSDictionary:308 - 
> Invalid dictionary, found: '3' but expected: '/' at offset 12814
> 19.12.2024 16:48:15 WARN  pdfparser.BaseParser.parseCOSDictionary:308 - 
> Invalid dictionary, found: '3' but expected: '/' at offset 12851
> false
> {noformat}
> The offsets are in the object stream.
> When opening the modified file with Adobe Reader, I get



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