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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2020/06/08 19:45:00 UTC
[jira] [Commented] (PDFBOX-4863) Bitmapped fonts are rendered very
blurry
[ https://issues.apache.org/jira/browse/PDFBOX-4863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128574#comment-17128574 ]
Tilman Hausherr commented on PDFBOX-4863:
-----------------------------------------
You can disable the improvement by disabling RenderingHints.VALUE_RENDER_QUALITY or RenderingHints.VALUE_INTERPOLATION_BICUBIC in the rendering hints (get / set in PDFRenderer).
The "bitmapped fonts" is probably type 3 fonts or inline images, e.g. PDFBOX-1950. Will investigate later this week.
> Bitmapped fonts are rendered very blurry
> ----------------------------------------
>
> Key: PDFBOX-4863
> URL: https://issues.apache.org/jira/browse/PDFBOX-4863
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.20
> Reporter: Cornelis Hoeflake
> Priority: Major
> Attachments: 2.0.19.png, 2.0.20.png
>
>
> Since 2.0.20 we have rendering issues for PDF's with bitmapped fonts. Please see attached images, the 2.0.19 and 2.0.20 version. Both are rendered from a A4 PDF on 300 DPI. Font size is around 12 points I think.
> The PDF is a private PDF of a customer, so I cannot share this PDF. And I don't know how to create a PDF with bitmapped fonts. (Tips are welcome). So I attached only a little part of the screenshots.
> I think it is related to PDFBOX-4516 (which is generally a great improvement).
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