I am thinking if it would do any difference with the slow scrolling if you save the file immediately soon after you insert a comment, and I would also check if it would be any different if you just work with this file completely offline before you share it for review. Doing so may avoid the experienced lag that is commonly produced by the background and file synchronization services, specially when sharing and editing a PDF online (like using 'Review for Comments', since the PDF is downloaded in the background one page at a time). I couldn't appreciate in your video the total number of pages for this document, but it looks like it is a very large PDF that contains well over 1,000 pages.ĭo you get the same issue if the PDF is less than 60 pages, for example?Īlso, I couldn't see very well in that video how many users are you sharing this large PDF for review with, or where is it accessed from? (a network folder, a cloud space, over regular Internet service user accounts?). Seems to me like a bug with memory handling. I have disabled the Show Online storage while opening and saving files, as suggested in other threads to no avail. Having spoken with other macOS users (I work in I.T.), this is not merely an individual user issue but a broader problem plaguing Adobe Acrobat in general.

Given the cost of this software, I would really appreciate some help from Adobe's support team, as well as an indication that they are planning on doing something about what is clearly an egregious lack of concern over glaring optimization issues. I am running the latest version of Adobe Acrobat Pro DC and macOS Mojave and have never seen these issues alleviated by two years of updates. My computer is a relatively powerful: 2016 15-inch MacBook Pro connected to an eGPU with Radeon RX 580 and an LG 4K monitor (more than enough power to edit PDFs). I have tried deleting the prefernce files outlined in other topics, which did nothing to alleviate the issue at all.

It appears to be very poorly optimized compared to other professional software titles which all run smoothly on macOS: Word, Excel, Pages, Numbers, etc. This happens no matter what the size of the PDF is from less than 1 MB to 10+ MB. For the last two years I have had consistent problems with Acrobat Pro DC being extremely slow/stuttery while scrolling, highlighting, commenting on a document.

Rapelay incredibly laggy