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https://issues.apache.org/jira/browse/PDFBOX-62?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13982464#comment-13982464
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Andreas Lehmkühler commented on PDFBOX-62:
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[~tilman] My solution works fine after using windows fonts instead of the
dejavu fonts included in fedora. I'll try to find out why those fonts are
different before committing my code.
[~maristaran] No, this issue isn't related to PDFBOX-1755. The given pdf hasn't
any font included and no width values are provided, so that we have to
calculate them on our own. My solution tries to extract those values from the
font which is used for rendering.
> Incorrect (zero) character widths returned in some docs
> -------------------------------------------------------
>
> Key: PDFBOX-62
> URL: https://issues.apache.org/jira/browse/PDFBOX-62
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering, Text extraction
> Assignee: Andreas Lehmkühler
> Attachments: 5542.pdf, PDTrueTypeFont.diff,
> pdfbox-2006-zerowidth.pdf-1.png, pdfbox-62-zerowidth.pdf-1.png
>
>
> [imported from SourceForge]
> http://sourceforge.net/tracker/index.php?group_id=78314&atid=552832&aid=1216674
> Originally submitted by tamirhassan on 2005-06-07 13:42.
> For certain PDF documents (such as the one attached)
> the character/string widths (as obtained e.g. by the
> PDFont.getStringWidth method) are not returned
> correctly, i.e. they appear to be correct for punctuation
> characters but are zero for alphanumeric characters.
> It seems as if these alphanumeric characters are NOT
> within PDFont.firstChar and PDFont.lastChar in the
> Type 1 font. The method therefore attempts to obtain
> the font widths from the AFM (font metric) file, but fails
> (silently) with a 'resource is null' logline message.
> (Note that this problem doesn't seem to occur with Type
> 1 fonts in other documents.)
> A more detailed discussion regarding this issue can be
> found in this link:
> http://sourceforge.net/forum/forum.php?
> thread_id=1260349&forum_id=267205
> Thanks in advance for any help that can be obtained,
> Tam
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