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https://issues.apache.org/jira/browse/PDFBOX-5169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17333487#comment-17333487
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Jakov Vežić commented on PDFBOX-5169:
-------------------------------------
In the meantime, managed to get this merge running on Windows with 3.0.0RC1,
using
{code:java}
java -jar pdfbox-app-3.0.0-RC1.jar merge -o=out.pdf -i=1.pdf -i=2.pdf
{code}
however, it takes a really long time on 6-core CPU to complete - about 4
minutes. The PDF it produces hangs almost immediately when opened with Acrobat
Reader, and gives out "not responding" so I have to force close it. Opening the
PDF in Chrome works flawlessly however, which is weird.
> 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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