Ben Manes created PDFBOX-4726:
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Summary: PDFRenderer uses excessive memory
Key: PDFBOX-4726
URL: https://issues.apache.org/jira/browse/PDFBOX-4726
Project: PDFBox
Issue Type: Improvement
Reporter: Ben Manes
Attachments: heap.png, stacktrace.png
{{PDFRenderer.renderImage}} uses BufferedImage with only in-memory data. This
is uncompressed and can use excessive memory. This occurs despite setting
\{{MemoryUsageSetting}} being configured on the document for disk space, which
should be honored.
This [stackoverflow answer|https://stackoverflow.com/a/53205617/19450]Â suggests
using a {{WritableRaster}} backed by a temporary file. This change cannot be
done in user code and requires updating the {{PDFRenderer}}.
I am currently trying to track down a PDF that caused out-of-memory issues.
From the heap dump only a few {{BufferedImages}} where in memory, but they took
6gb in their uncompressed data.
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