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https://issues.apache.org/jira/browse/PDFBOX-3792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013724#comment-16013724
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Tilman Hausherr commented on PDFBOX-3792:
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I wouldn't bother about that one. The better solution would be to remove the 0
bytes from the extracted text in post processing. The error isn't in the font
this time, the error is in the page content stream, i.e. the code 0 is really
used.
> Getting lots of warnings "No Unicode mapping for..." when extract text
> ----------------------------------------------------------------------
>
> Key: PDFBOX-3792
> URL: https://issues.apache.org/jira/browse/PDFBOX-3792
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.5
> Reporter: sunny xia
> Attachments: FileWithIssue.pdf, IssueLog.txt, OutputText.txt
>
>
> When I use PDFbox to extract text, I get lots of warnings and as output I
> only get garbage. But when I use Abode Acrobat to export the attached PDF
> file to text, it works fine. I have attached the original PDF file, the text
> output and the log with warnings. And besides, PDF file seems to have a
> Type-1 font embedded with a custom encoding.I have checked lots of reports on
> JIRA issue tracker, still find no way to solve it.
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