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https://issues.apache.org/jira/browse/PDFBOX-4313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614984#comment-16614984
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Emilian Bold commented on PDFBOX-4313:
--------------------------------------
See the attached PDF [^1536938716546.pdf] This reproduces the bug for me with
and without setSortByPosition.
Also attaching the unit test for it.
> PDFTextStripper groups unrelated chunks into words
> --------------------------------------------------
>
> Key: PDFBOX-4313
> URL: https://issues.apache.org/jira/browse/PDFBOX-4313
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.11
> Reporter: Emilian Bold
> Priority: Major
> Attachments: 1536938716546.pdf, PDFBOX-4313.pdf,
> crop-fisa-sintetica.png
>
>
> I have the text "10" and "11" and they get merged into to "1110" word.
> Coordinates are:
> 1 575.36 x 227.4 w 4.447998 h 5.736
> 1 579.752 x 227.4 w 4.447998 h 5.736
> 1 526.2 x 227.4 w 4.447998 h 5.736
> 0 530.59204 x 227.4 w 4.447998 h 5.736
> The bug is in in this PDFTextStripper chunk:
> {{
> // test if our TextPosition starts after a new word would
> be expected to start
> if (expectedStartOfNextWordX !=
> EXPECTED_START_OF_NEXT_WORD_X_RESET_VALUE
> && expectedStartOfNextWordX < positionX &&
> // only bother adding a space if the last
> character was not a space
> lastPosition.getTextPosition().getUnicode() !=
> null
> &&
> !lastPosition.getTextPosition().getUnicode().endsWith(" "))
> {
> line.add(LineItem.getWordSeparator());
> }
> }}
> which seems to add a word separator only if the next char is "after" the
> current word. It never expects that the next char might be "before" the
> current word.
> I guess this could also be framed as a RTL problem, but the PDF is a plain
> PDF, it just seems that Oracle Reports generates these chunks in the reverse
> order.
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