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https://issues.apache.org/jira/browse/PDFBOX-5018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17233567#comment-17233567
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Marco Barbi commented on PDFBOX-5018:
-------------------------------------
Thanks for the detailed explanaition.
Then, at our end we could implement a logic that, if two characters share the
same location and one of them is a blank, the blank is always rendered as
first. This is not a general rule but in our use cases may be effective.
> Wrong extraction of blank character
> -----------------------------------
>
> Key: PDFBOX-5018
> URL: https://issues.apache.org/jira/browse/PDFBOX-5018
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.21
> Reporter: Marco Barbi
> Priority: Major
> Attachments: IT00820340966_Z-SO-PO 5270213 (1).pdf,
> image-2020-11-17-11-19-45-132.png
>
>
> Applying the PDFTextStripper to the attached PDF Document, a not-existing
> blank character is read in the following text:
>
> !image-2020-11-17-11-19-45-132.png!
>
> Instead of "O1AI7A" the text supplied to the writeString method callback is
> "O 1AI7A".
> Making copy&paste from Adobe Reader doesn't introduce any blank character.
>
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