Tilman Hausherr created PDFBOX-5799:
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Summary: Page with thousands of content streams takes extremely
long to render or extract
Key: PDFBOX-5799
URL: https://issues.apache.org/jira/browse/PDFBOX-5799
Project: PDFBox
Issue Type: Bug
Components: Rendering, Text extraction
Affects Versions: 3.0.2 PDFBox
Reporter: Tilman Hausherr
As reported by Erik Branks on the mailing list:
{quote}when attempting text extraction from the PDF at
[https://d-nb.info/1324982411/34] , either using PDFBox 3.0.0 or PDFBox
4.0.0-SNAPSHOT, the extraction uses about 1,8 GB heap memory and does not seem
to terminate. I cancelled the extraction attempt after roughly 20 minutes. Is
this another bad PDF or is there a bug in PDFBox?{quote}
This happens with pages 230 and 231 (maybe others). Both have thousands of
content streams in the content stream array. The profiler suggests that most
time is spent in {{SequenceRandomAccessRead.seek()}}.
Rendering page 230 with PDFBox 2.0: 50 seconds
Rendering page 230 with PDFBox trunk: 2990 seconds
Rendering page 231 with PDFBox trunk: 4798 seconds
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