You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "dariusz dusberger (JIRA)" <ji...@apache.org> on 2015/09/22 03:27:04 UTC
[jira] [Updated] (PDFBOX-2984) PDFTextStripper adds extra word/line
delimiters when PDF page orientation is 180 degrees
[ https://issues.apache.org/jira/browse/PDFBOX-2984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
dariusz dusberger updated PDFBOX-2984:
--------------------------------------
Summary: PDFTextStripper adds extra word/line delimiters when PDF page orientation is 180 degrees (was: PDFTextStripper adds word/line delimiters when PDF page orientation is 180 degrees)
> PDFTextStripper adds extra word/line delimiters when PDF page orientation is 180 degrees
> ----------------------------------------------------------------------------------------
>
> Key: PDFBOX-2984
> URL: https://issues.apache.org/jira/browse/PDFBOX-2984
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 1.8.10
> Environment: Windows/Linux, JDK 1.7
> Reporter: dariusz dusberger
> Attachments: 1760_001.pdf
>
>
> The PDFTextStripper adds word delimiters between each character and new-line after each word when page orientation is 180 degrees.
> This happens because the PDFStreamEngine uses the raw scaling factor Matrix.getXScale() from the transformation Matrix to scale width/font-size which are used to calculate spacing between characters.
> =========================================================
> Output of the PDFTextStripper.getText(pdDoc);
> T h i s i s
> a t e s t 1 ! ! !
> T h i s
> i s
> a t e s t
> 2
> ! ! !
> T h i s i s
> a
> t e s t 3
> ! ! !
> T h i s i s
> a t e s t 4 ! ! !
> =========================================================
> Example: The following will result in negative spaceWidthDisp / font-size in PDFTextStripper
> 180 degrees = [-1, 0, 0; 0, -1, 0, w, h, 1]; therefore the textMatrix.getXScale() == -1
> float spaceWidthDisp = spaceWidthText * fontSizeText * horizontalScalingText * textMatrix.getXScale() * ctm.getXScale()
> fontSizeText * textMatrix.getXScale()
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: dev-help@pdfbox.apache.org