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https://issues.apache.org/jira/browse/PDFBOX-2195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055323#comment-14055323
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John Hewson commented on PDFBOX-2195:
-------------------------------------
The issue here is that the font is missing and doesn't exist on the system
(there's no such font as Tahoma Italic on Windows). I'm using a Mac and I see
an italic font with OS X Preview, Acrobat, and Foxit but not with PDFBox.
That's because PDFBox is using its fallback font, which is a regular sans-serif
font.
The other PDF viewers seem to be taking into account the FontDescriptor which
is associated with the missing font, which specifies that the font is
sans-serif and italic. I think it's using this information to make a smarter
fallback font substitution. We could probably support this soon in PDFBox as
part of PDFBOX-2149 which is under active development.
> Missing text when converting PDF to image
> -----------------------------------------
>
> Key: PDFBOX-2195
> URL: https://issues.apache.org/jira/browse/PDFBOX-2195
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.0
> Environment: Win8.1 (JRE 1.7)
> Reporter: A.D. Kent
> Attachments: Claim AA011332 Diagram and Estimates.pdf, Claim AA011332
> Diagram and Estimates.tif
>
>
> Attempting to convert a PDF to image using latest 2.0.0 from SVN. PDF
> utilizes Tahoma, Tahoma,Bold, and Tahoma,Italic (non-embedded). Upon calling
> PDFRenderer.renderImageWithDPI, I get the following output:
> Jul 08, 2014 9:50:01 AM org.apache.fontbox.util.SystemFontManager
> findTTFontname
> WARNING: Font not found: Tahoma,Italic
> Resultant image is missing text where Tahoma,Italic is used. Have also
> reverted to 1.8.6 and used PDPage.convertToImage with same results.
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