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https://issues.apache.org/jira/browse/PDFBOX-4728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17933070#comment-17933070
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Michael Klink edited comment on PDFBOX-4728 at 3/6/25 5:40 PM:
---------------------------------------------------------------
Names in PDFBox indeed have quite a history. At one time, even only US_ASCII
bytes were handled properly, see e.g. [here on stack
overflow|https://stackoverflow.com/a/48306517/1729265].
The main issue is, as you said, that PDFBox insists on interpreting names as
text and even stores only that text in the name object.
I have to admit I may be partially guilty for the current way PDFBox interprets
names, considering my comments to PDFBOX-3347 and elsewhere. While it always
was clear that names must not be interpreted as text, I played along in the
"How should names be interpreted as text if they must be" line of discussion
nonetheless.
was (Author: mkl):
Names in PDFBox indeed have quite a history. At one time, even only US_ASCII
bytes were handled properly, see e.g. [here on stack
overflow|[https://stackoverflow.com/a/48306517/1729265].]
The main issue is, as you said, that PDFBox insists on interpreting names as
text and even stores only that text in the name object.
I have to admit I may be partially guilty for the current way PDFBox interprets
names, considering my comments to PDFBOX-3347 and elsewhere. While it always
was clear that names must not be interpreted as text, I played along in the
"How should names be interpreted as text if they must be" line of discussion
nonetheless.
> 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.
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