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I have an Acrobat Pro 7.0 license I paid for years and years ago. I have a single use case: I scan a lot of vintage computer manuals as a hobby. Pro offers fine control over compression options. Acrobat has been nagging me for more than a decade to register it (though I registered it when I bought it). A couple of times I've had computer crashes or migrations and getting 7.0 reinstalled on the new machine was a pain.

It galls me to think they want $500 for me to buy Pro again when I don't need or want any of the new features. I just want the existing functionality I paid for to continue working.

Do any of the alternatives have similar fine control of compression options that Acrobat Pro exposes? I'd switch in a heartbeat.



ColorSync Utility on macOS (sorry, not sure of the right name in English) allows to add filters.

I've used it to great success for down-/resizing/-sampling all kind of PDFs which sometimes are basically full pictures on each page.

Create own filter, add "picture compression", mode "JPEG", move the slider just a little right from the middle...

Start ColorSync app, open PDF, select filter from lower left, click "Apply" and then either "Save" or "Save as..."


The large number of ancient Acrobat Pro licenses floating on ebay seems to hint you are not the only one...


Same here but with 9.0. My only complaint is that itβ€˜s a little wonky with a high DPI display.




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