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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2018/09/06 16:36:00 UTC
[jira] [Comment Edited] (PDFBOX-4313) PDFTextStripper groups
unrelated chunks into words
[ https://issues.apache.org/jira/browse/PDFBOX-4313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16606051#comment-16606051 ]
Tilman Hausherr edited comment on PDFBOX-4313 at 9/6/18 4:35 PM:
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Please attach the PDF file. Also try if the sort option helps.
https://pdfbox.apache.org/2.0/faq.html#why-does-the-extracted-text-appear-in-the-wrong-sequence
was (Author: tilman):
Please attach the PDF file. Also try if the sort option helps.
> 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
>
> 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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