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https://issues.apache.org/jira/browse/PDFBOX-4728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17932834#comment-17932834
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Matti Oinas commented on PDFBOX-4728:
-------------------------------------
The problem happens, when XObject has name with non UTF-8 encoding.
!image-2025-03-06-07-28-20-426.png!
Content references that object
{code:java}
...
q
538.554 0 0 239.811 28.346 587.083 cm
/Løvetann Do
Q
...{code}
Without the fix the XObject name will be different after the save operation,
but content is still referencing using the original name.
> Broken PDF after load and save
> ------------------------------
>
> Key: PDFBOX-4728
> URL: https://issues.apache.org/jira/browse/PDFBOX-4728
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing, Writing
> Affects Versions: 2.0.18, 3.0.0 PDFBox, 3.0.4 PDFBox
> Reporter: Matti Oinas
> Priority: Major
> Attachments: PDFBOX-4728.patch, image-2025-03-06-07-28-20-426.png
>
>
> If read was done using WINDOWS-1252 charset and writing is done using
> UTF-8 then resulting PDF will be broken after load and save operations.
> {{PDDocument document = PDDocument.load(sourcePath);}}
> {{document.save(targetPath);}}
> If source PDF contains XObject dictionary reference whose name isn't
> encoded in UTF-8. For example.
> /L#f8vetann 16 0 R
> That is read using WINDOWS-1252 encoding. Now if write operation is
> using UTF-8 then the resulting name will be
> /L#3Fvetann 16 0 R
> And resulting PDF is broken and image is missing.
> FIX in pull request: https://github.com/apache/pdfbox/pull/77
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