Slow PDF Viewing in Yosemite

I actually have the problem with Preview. It uses an entire CPU and makes PDF viewing unworkable.

Same problem after upgrading to Yosemite.

For those who want to test this out, try view this PDF with your OS X Preview

http://support.mekentosj.com/discussions/problems/79775-painfully-slow-scrolling -in-some-papers

I have the same issue. By now the best we can do is let apple now about this issue:

https://www.apple.com/feedback/macosx.html

This problem is also being discussed in theses threads:

Preview is very slow after Yosemite upgrade.

Annoying slowness of Preview after Yosemite upgrade

Same problem here.

Thanks for the worlds most beautiful trash can. How do you not have Preview work with PDF's on release, Fix it?

@spyder90230, Apple does not read this forum, please leave a comment here:

Let Apple now about this issue:

https://www.apple.com/feedback/macosx.html

Hopefully if enough people report it it will be eventually fixed.

It is extremely frustrating not being able to use .pdf documents in a 2,000 USD computer

Actually, certain teams at Apple do read this forum, I got follow up questions by the iWork team etc. about comments posted here in the forum. However you are right, the correct place to report feedback is Apple's feedback page.

Regarding the sloooow PDF viewing, under Yosemite, this not only affects Preview and Safari, but also alternative PDF viewers like Skim – I guess they use the same engine to view PDFs as Preview…

Anyway, it's terrible for me, as I have to do a lot of work with PDFs, so I really need this function to work. I am thinking of getting Adobe Acrobat reader – has anyone tested how this behaves under Yosemite?

Acrobat for PDF has same malfunction as Preview.

Solution:

Install Adobe Acrobat and use it as the default program for PDF's. I arrived at this workaround after 2 hours on the phone with apple tech support, I have sent them diagnostic info, hopefully this is repaired in the next release.

Good luck!

I'm having the same iissue. My 2011 MBP crashes after about 10 mins of viewing a PDF in either preview or pdfscanner. PDFscanner is a scanning app I puchased a few years back but was recently updated for compatibility with Yosemite. I hope apple releases a fix for this soon. I'm finding the document is scanned correctly and if I switch into windows (bootcamp) and view it in my dropbox folder I can view it with no issues.

I have been informed by Apple that their engineers are aware of the scrolling problem with PDFs, as they have reproduced it with my PDF files on their OS10.10 machines. I am told they are working on it and will correct eventually with an update.

Maybe it's an issue caused by Yosemite's tranparency effect, I noticed the same behaviour mainly in Firefox, disabling the transparencies made it much better.

Simple head over to the Apple Menu -> System Preferences -> Accessibility -> Display -> Check the box that says Reduce Transparency.

I've got the same problem. Some PDFs render painfully slow ... and reducing the system-wide transparency does not help.