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https://issues.apache.org/jira/browse/PDFBOX-2305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14118075#comment-14118075
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Andreas Lehmkühler commented on PDFBOX-2305:
--------------------------------------------

I can't confirm the described behaviour. PDFBox converts all pages within 
seconds using Win7, Oracle JDK 1.7.0_55 64Bit. I've tried 1.8.5, 1.8.6, the 
mentioned 1.8.7-SNAPSHOT and a 2.0.0-SNAPSHOT. 

Starting with 1.8.6 there is an additional warning, which shouldn't have any 
impact on the processing
{quote}
Sep 02, 2014 11:59:00 AM 
org.apache.pdfbox.util.operator.pagedrawer.BeginInlineImage process
Warnung: Stencil masks are not implemented, background may be incorrect
{quote}

The interesting part is,
- all images are mostly empty using 1.8.x (the text is missing due to a font 
rendering issue with some JDKs)
- I haven't got any output at all when using 2.0.0-SNAPSHOT (PDFBox seems to do 
something but there aren't any images, PDFReader works well)

> PDPage.convertToImage() is taking 2-3 hours for a single page
> -------------------------------------------------------------
>
>                 Key: PDFBOX-2305
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2305
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 1.8.6
>            Reporter: Sidharth Pipriya
>         Attachments: FPGA-98-PAGES_upload-p48.pdf, FPGA-98-PAGES_upload.pdf
>
>
> For Page number 46, it takes a lot of time (2-3 hours) to process a single 
> page. rest of the pages are processed at rate of 2/3 sec per page.



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