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https://issues.apache.org/jira/browse/PDFBOX-4435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16748261#comment-16748261
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Tres Finocchiaro commented on PDFBOX-4435:
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That article claims that there are performance issues, not that it's
unsupported. Are they the same issue (I assume so, 27 minutes to print is
atrocious :))
Is there something that an Oracle subscriber can do to help? Today,
coincidentally, I just received another, separate client report out of memory
issues on another, unrelated PDF and when I test it, I can confirm that
PDFBOX/Java prints it to raster and it uses over 1GB of ram to print. If it's
not an upstream bug, perhaps we can add some compat code to disable
transparency altogether?
If it is upstream, I'm not afraid to reach out to Oracle for support (again :)).
> Poor quality printing of PDF label
> ----------------------------------
>
> Key: PDFBOX-4435
> URL: https://issues.apache.org/jira/browse/PDFBOX-4435
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.3, 2.0.13, 2.0.14
> Environment: Lubuntu 16.04, GK420d printer, CL-S400DT(Z) printer
> Reporter: David Hancock
> Priority: Major
> Fix For: 2.0.14, 3.0.0 PDFBox
>
> Attachments: before_after.png, comparison.png, label-pdfbox-1-8.jpg,
> label-pdfbox-2-0.jpg, label.pdf, label.png
>
>
> Hello,
> I'm experiencing poor quality printing of PDF courier labels with PDFBox when
> printing from the command line with the following command:
> {noformat}
> java -jar pdfbox-app-*.jar PrintPDF label.pdf
> {noformat}
> This makes scanning the QR code on these labels troublesome.
> I've tried versions 2.0.3, 2.0.13, 2.0.14 (SNAPSHOT) and all produce the same
> quality issue. Interestingly version 1.8.16 does not appear to suffer from
> this issue.
> I have tried 2 different thermal printers, a GK420d and a CITIZEN
> CL-S400DT(Z) and both output the same.
> When printing the label directly from the GNOME document viewer (Evince) the
> label prints clearly on both printers.
> Please find examples of these labels attached.
> Can anything be done to prevent these quality issues?
> Thanks,
> David
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