Yannick Haser created PDFBOX-3902:
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Summary: PDFs with Bitmap Fonts are getting rendered poorly
Key: PDFBOX-3902
URL: https://issues.apache.org/jira/browse/PDFBOX-3902
Project: PDFBox
Issue Type: Bug
Reporter: Yannick Haser
I have a problem with converting some special PDFs to JPEGs. Those "special"
PDFs have a bitmap Font for their text-representation, after converting to JPEG
the text is not readable.
Converting the PDF to a higher resolution and scaling it down manually fixes
that issue (Problem: Higher Converting Cost).
The problem for the ticket is, that I'm not allowed to present those PDFs and I
still cannot reproduce those perfectly.
My best shot is the attached PDF.
Problem-Setup:
Converting the PDF to JPEG with 144 DPI.
{code:java}
BufferedImage image = renderer.renderImageWithDPI(0, 144, ImageType.RGB);
{code}
Fix-Setup:
Converting the PDF to Jpeg with 432 DPI and scale it down with an external
Scaling Algorithm.
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