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https://issues.apache.org/jira/browse/PDFBOX-1814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13908208#comment-13908208
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Gerald Hildebrandt commented on PDFBOX-1814:
--------------------------------------------
I can confirm that latest version from trunk (revision 1570489) is around 10
times faster:
old PDFBox Version:
{code}
PDF: DID04S00135185637914248013288#5#0.pdf
RenderUtil.convertToImage on page 1 took 64133 ms
RenderUtil.convertToImage on page 2 took 64911 ms
RenderUtil.convertToImage on page 3 took 63126 ms
{code}
PDFBox Version (revision 1570489 from trunk):
{code}
PDF: DID04S00135185637914248013288#5#0.pdf
RenderUtil.convertToImage on page 1 took 7604 ms
RenderUtil.convertToImage on page 2 took 7003 ms
RenderUtil.convertToImage on page 3 took 7173 ms
{code}
> In some cases PDPage converttoimage is extremely slow
> ------------------------------------------------------
>
> Key: PDFBOX-1814
> URL: https://issues.apache.org/jira/browse/PDFBOX-1814
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 1.8.3
> Environment: all (windows, Linux, unix, jre1.6, jre1.7)
> Reporter: lieven vanlerberghe
> Assignee: John Hewson
> Fix For: 2.0.0
>
> Attachments: extreme_slow.pdf
>
>
> I convert hundreds of documents with an average of some seconds per page.
> One type of documents takes several minutes per page.
> It is not linked to the size of the document: I extracted one page and
> generated the image on its own.
> It is not linked to the fonts, because I have the same content in another
> document (A6 format instead of A4), and there I don't have a problem.
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