"Organize pages" on large PDFs causes Acrobat.exe to use ALL of the computer's memory

[January_5752]

We're a construction company, and frequently deal with high-res, long architectural PDFs. As of the most recent few versions, when we try to use the Organize Pages feature on these, Acrobat will consume ALL of the computer's remaining memory and start paging when it's trying to display the thumbnails. This will continue until the computer is actually unusable, and can only be recovered by forcibly rebooting, if you don't terminate the task before that point. This happens quickly, over the course of a couple minutes. Our IT was able to reproduce this on one of their computers. It seems like a severe memory leak.

We've already thoroughly removed/cleaned Acrobat and reinstalled it, to no effect. It is not limited to particular PDFs, nor particular sources/authors, and we aren't sure what else we can do.

[creative explorer]

@January_5752 curious what OS are you using? Amount of RAM? Acrobat Version? 

Personally, I would turn off page cache. Go to Edit > Preferences. Select the Page Display category. In the Rendering section, un-check the box next to "Use page cache" and click OK and restart Adobe Acrobat Pro DC.

[January_5752]

Windows 11 23H2 and 25H2 on affected machines. 16 GB RAM. Acrobat 25.1.20756, 64-bit, pro license.

We've tried disabling page cache. Our IT has tried it on several of their machines now, same effect.

[takka]

It results in the same condition.
It looked like the issue had been fixed in the previous version,
but it seems to have reappeared in Acrobat 25.1.20756.

Since multiple pages (several dozen) are displayed in reduced view, a large amount of memory is used,
but it feels like the memory of scrolled-out pages is not being released.