Am 16.11.2016 um 13:21 schrieb Albert, Felix:
Hello,
first thank you very much for your awesome library. I want to use it to merge
several PDF files into a single one.
The files only consist of scanned documents - yet these partly have a lot of
details and huge sizes (up to 200mb).
So my question is, is there any possibility that during the merge-process data
might be lost?
To my understanding the content of the pdf file is just being transferred from
one pdf container into another during the merging, so my assumption is that
during a successful merge no image data can get lost, but I would be very happy
about a confirmation or a denial from your side.
It depends how you define "data loss". What can get lost is stuff that
is at most once in each of the files, e.g. metadata. But not the page.
You wrote about PDFs from scanned data. I have such a use case myself at
work: we scan papers with a number. These numbers are unique, i.e. there
are never two PDFs with the same number on the paper. Now guess what -
it happens every day that we have duplicates LOL (mostly because people
copy these papers and submit them several times). So what we do (and the
client agrees) is to create one single PDF from these with PDFBox.
Tilman
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