[jira] [Created] (PDFBOX-4058) High memory consumption when extracting image from PDF file

["Bjorn Misseghers (JIRA)" <ji...@apache.org>]

Bjorn Misseghers created PDFBOX-4058:
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             Summary: High memory consumption when extracting image from PDF file
                 Key: PDFBOX-4058
                 URL: https://issues.apache.org/jira/browse/PDFBOX-4058
             Project: PDFBox
          Issue Type: Bug
          Components: Rendering
    Affects Versions: 2.0.8
         Environment: windows 10 / Linux
            Reporter: Bjorn Misseghers
         Attachments: HighMemoryFootprint.pdf

When rendering an image at 300 dpi from the included PDF, my java process uses a huge amount of memory.
The document is only 45 Kb in size and contains 2 pages, my JVM is unable to extract even 1 page with 3G of memory. Setting Xmx to 4G works but is not the solution I want.
The error occurs when calling PDFRenderer.renderImageWithDPI()

I already tried tweaking the memory usage in my application to use a scratch file while loading the document as well as avoiding caching of XObjects as described here: https://pdfbox.apache.org/2.0/faq.html#outofmemoryerror
These didn't work.

The issue can be reproduced using the pdfbox-app utility:
java -Xmx3G -jar pdfbox-app-2.0.8.jar PDFToImage 
HighMemoryFootprint.pdf -dpi 300 -color RGB -page 1

What can not be changed?
* 300 dpi will not be decreased.
* Max Java memory will not be increased: 3GB is ridiculous for a 45kb PDF file.




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