Reduce file size crashes with large files Mac OS14

[DavidHoffmanuk]

Mac Studio M2 Max. OS 14.1.2

Acrobat Pro on continous release

I have a couple of PDFs printed from an image database that are a bit over 3GB. Acrobat crashes whenever I try to reduce the file size. Other, smaller PDFs produced in the same way compress without difficulty. 

This happens whether I'm replacing the existing file or renaming the compressed file.

Working from a different drive makes no difference.

Deleting the preferences makes no difference.

Any solutions known for this?

Thanks

David Hoffman

[Luke Jennings3]

I would open the original image in Acrobat and go to File> Save-as-Other> Optimized pdf, select the desired downsampling and compression options. Selecting all of the Discard & Clean Up options can often produce a much smaller pdf, although your pdfs are probably just image heavy. If you are converting multiple images, you can create an Acrobat Action.

[gifted_smarts15D5]

have tried everything, keps crashing, no crash report or anything just quits part way thru.  This is a mess.

[Luke Jennings3]

Are you starting from a large image and trying to reduce the size, like the op? if not, please provide more details about what you are trying to do and your methods.

[gifted_smarts15D5]

I am starting with a 280mb file of 47 pages. some with images, some not.

I have been doing this for years with no trouble until now.

[Luke Jennings3]

Did you try to use the optimizer tool? Please provide more details about what you are trying to do and your methods.

[gifted_smarts15D5]

yes same thing happened, tried everything, nothing worked.

[Luke Jennings3]

Try saving as PDF/X-4 before optimizing, sometimes that helps. There may be one corrupt element on one page, to find it, divide your pdf into 2 parts, optimize, repeat until you find the bad page.