Since I installed Acrobat DC, I dread opening PDFs with it as it is very unresponsive and slow. Everything takes ages. One click: several seconds of spinning beach ball, next click: the same.
The bigger the file, the slower the app. Today I opened a 2.1 MB file with 90 pages (business cards,text plus vector based logo, 2c: black and one spot colour, no backgrounds) and standardoperations such as changing the display settings, showing thumbnails, rearranging pages anddeleting pages took me about 15 minutes in contrast to 2. I cannot work with this tool an aprofessional basis anymore. :-(
I hoped that an update would patch this but i seems that there have not been many updates toAcrobat DC showing up in my Creative Cloud panel. :-(
Some time ago I uninstalled it and reinstalled it from the cloud but no changes at all. Still slow, stillunresponsive performance.
I really hate the new version. First you had to uninstall the old one which worked fine, instead ofbeing able to use both versions as with other Adobe applications. Then the interface had beenredesigned YET AGAIN. Zooming seems way more complicated as the normal shortcuts as in otherAdobe apps (drawing zoom in window with magnifier) don't work anymore.
Then this horrible "optimize for reading" message kept popping up, stuck in the foreground andprevented changes from being saved. (That has changed now and ist working though this 90s era"optimize for reading" window still appears on a regular basis.) That was horrible and nerve-racking.
But it got worse with the freezing and the spinning beach ball whenever I try to interact with theinterface.
I searched the web but not much is found on this issue. There were some ideas in this forum(deleting the "read out loud" plugin, deactivating privacy and security settings etc.) but no changes.
I made Acrobat Reader my PDF default and it is way faster but of course it is much less capable.Even better (because less bloated) is Apple’s Preview that is really fast and works instantly with thesame files.
All the other Adobe apps I installed on my system work completely fine (Adobe CS6 and the latestAdobe CC 2015); InDesign, Photoshop, Illustrator, Fireworks, Muse, Bridge.
I suspect that the app tries to connect with some server or to do all kinds of interaction with the harddrive and therefore slows down immensely. Or maybe support or display operations like rendering?In Activity Monitor it is often marked as "does not respond".
• OS X El Capitan 10.11.6
• iMac 27 inch, End of 2012
• 1.12 TB Fusion Drive
• RAM 16 GB
• Adobe Acrobat DC 15.016.20039
• Adobe CC licence