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https://issues.apache.org/jira/browse/PDFBOX-5169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17325247#comment-17325247
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Tilman Hausherr edited comment on PDFBOX-5169 at 4/20/21, 3:37 AM:
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No idea yet, some things that could be investigated when more time:
- removing structure tree
- run the error check from the merge test class on the structure tree
- try the same on a split PDF and compare
- read and save the 3.0.0 result with the 2.0.23 code (is 3.0 result smaller
because the support of compressed object streams in 3.0 ?)
was (Author: tilman):
No idea yet, some things that could be investigated when more time:
- removing structure tree
- run the error check from the merge test class on the structure tree
- try the same on a split PDF and compare
- read and save the 3.0.0 result with the 2.0.23 code (is 3.0 result smaller
because of compressed object streams in 3.0 ?)
> PDFMerger produces overly large output PDF
> ------------------------------------------
>
> Key: PDFBOX-5169
> URL: https://issues.apache.org/jira/browse/PDFBOX-5169
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.22, 2.0.23
> Environment: Debian 10
> Reporter: Jakov Vežić
> Priority: Minor
>
> Using PDFMerger to combine
> [https://www.dropbox.com/s/kprk7aeggni420c/1.pdf?dl=1]
> with
> [https://www.dropbox.com/s/0h8bced4tm3gppz/2.pdf?dl=1]
> results in an overly large file. The two input files are 1,25 MB and 16,3 MB
> large, while the output file is just over 400 MB large. The action also
> consumes about 1 GB of memory. No errors are produced during the merge that I
> can tell.
> The command is:
> {code:java}
> java -Xmx2500M -jar pdfbox-app-2.0.23.jar PDFMerger 1.pdf 2.pdf output.pdf
> {code}
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