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https://issues.apache.org/jira/browse/PDFBOX-3294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15215592#comment-15215592
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Tilman Hausherr commented on PDFBOX-3294:
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That is because your PDF is huge. The media box is 3000 x 5135. An A4 page is
595 x 841.
Solution: use a higher -Xmx value and use a lower dpi.
If possible, talk to the creator of the PDF. It can be much smaller if they use
vector graphics instead of two images inside.
> After loading pdf through PDFRenderer(pdf), We are trying to take the first
> page and convert that into preview image, but it is sometimes gets out of
> memory.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-3294
> URL: https://issues.apache.org/jira/browse/PDFBOX-3294
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.0
> Environment: Windows 8.1 OS, 8 GB ram, I5 processor
> Reporter: Vijay
> Priority: Blocker
> Attachments: VFEpRJNMpdC1SCElMVN_ew__93_1_93_0.pdf,
> originalVFEpRJNMpdC1SCElMVN_ew__93_1_93_0.pdf_VFQZ-4975.jpg, screenshot-1.png
>
>
> Senario 1.
> After loading pdf through PDFRenderer(pdf), We are trying to take the first
> page and convert that into preview image, but it is sometimes gets out of
> memory by calling "pdfRenderer.renderImageWithDPI(0, 300, ImageType.RGB)",
> Senario 2.
> After loading pdf through PDFRenderer(pdf), We are trying to take the first
> page and convert that into preview image, so we are calling
> "pdfRenderer.renderImageWithDPI(0, 300, ImageType.RGB)", it takes more time
> to return the bufferimage.
> after we called ImageIOUtil.writeImage(bufferedImage, fileName, 175) tooks
> more time to save it to local and the size of the image is very huge.
> for example.
> total size of the pdf -1.7 mb
> first page image size - 11 MB.
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