cross-posted from: https://lemmy.world/post/27501866
source: @[email protected]
this post was submitted on 28 Apr 2025
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you know the computer thing is it plugged in?
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Is this some Acrobat functionality or something?
Off the top of my head, there's pdfjam, pdftk and imagemagick (don't forget the --dpi switch) who could probably do that, after reading the man pages. Or ghostscript' gs, if you want to go in-depth.
But generally, just rotate the source material you've got the pdf from. That's how it is intended.
I've used ghostscript a few times to reduce the quality of images within a pdf, so they wouldn't be freezing my phone while reading. From ~80mb to 25mb
The folks at Corvus Belli could learn a thing or two about that when making the pdfs for their Warcrow game (the core rules pdf is 118MB for 60 pages)