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https://issues.apache.org/jira/browse/PDFBOX-2573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14249036#comment-14249036
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John Hewson edited comment on PDFBOX-2573 at 12/16/14 9:57 PM:
---------------------------------------------------------------
The underlying issue is that this file includes a standard 14 font with the
name of "Helvetica~1d3", which we're not able to recognise. The font is not
embedded and there is no FontDescriptor. OS X Preview omits the font entirely,
however Acrobat renders it, and Preflight lists it as "base 14":
!preflight.png!
We need to add some heuristics for detecting standard 14 fonts. Looking for a
missing FontDescriptor would be a good start.
was (Author: jahewson):
The underlying issue is that this file included a standard 14 font with the
name of "Helvetica~1d3", which we're not able to recognise. The font is not
embedded and there is no FontDescriptor. OS X Preview omits the font entirely,
however Acrobat renders it, and Preflight lists it as "base 14":
!preflight.png!
We need to add some heuristics for detecting standard 14 fonts. Looking for a
missing FontDescriptor would be a good start.
> IllegalStateException: PDFBox bug: encoding should not be null!
> ---------------------------------------------------------------
>
> Key: PDFBOX-2573
> URL: https://issues.apache.org/jira/browse/PDFBOX-2573
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.0
> Reporter: Tilman Hausherr
> Assignee: John Hewson
> Attachments: PDFBOX-2573-865252-p4.pdf, preflight.png
>
>
> This seems to be a follow-up of PDFBOX-2489 (some of the files that had the
> old bug are now ok, but not this one):
> {code}
> Exception in thread "main" java.lang.IllegalStateException: PDFBox bug:
> encoding should not be null!
> at
> org.apache.pdfbox.pdmodel.font.PDSimpleFont.isFontSymbolic(PDSimpleFont.java:205)
> at org.apache.pdfbox.pdmodel.font.PDFont.isSymbolic(PDFont.java:440)
> at
> org.apache.pdfbox.pdmodel.font.PDSimpleFont.readEncoding(PDSimpleFont.java:111)
> at
> org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:228)
> at
> org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:65)
> {code}
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