Go Back   MacRumors Forums > Apple Applications > Mac Applications and Mac App Store

Reply
 
Thread Tools Search this Thread Display Modes
Old Feb 12, 2013, 07:57 AM   #1
Spectrum
macrumors 6502a
 
Join Date: Mar 2005
Location: UK
Very slow PDF rendering in Preview

I have a few PDF files that render some of the pages (complex line art) VERY slowly.

Here is an example:

https://www.dropbox.com/s/ph171hsj4p...PDF%20page.pdf

It even causes the Dropbox/Safari PDF viewer to hang!

Interestingly, if you download and open the file in Preview but shrink the window so that the page is slightly smaller than the "Open at actual size", the rendering becomes instant.

For some reason, going at least to 100% size causes one of the processor cores to get pegged at 100% for a few seconds while the images get drawn.

The same does not happen when using Acrobat (but the software is otherwise not nice to use).

I have other software (Sente) that uses the Preview rendering engine, so it is also slow.

This is on 10.6.8 on a quad core mini i7. Anyone else see the same problem in Lion and above?
Spectrum is offline   0 Reply With Quote
Old Feb 12, 2013, 08:38 AM   #2
JackRoch
macrumors member
 
Join Date: Jul 2010
Doesn't seem to cause any problems in SL on my 2010 iMac.

Have you tried Skim?
http://skim-app.sourceforge.net/
JackRoch is offline   0 Reply With Quote
Old Feb 12, 2013, 09:22 AM   #3
Spectrum
Thread Starter
macrumors 6502a
 
Join Date: Mar 2005
Location: UK
I just tried Skim. Same problem. The PDF renders fine whilst the window is small, but as soon as I zoom into the PDF or increase the window size (with Automatically resize selected) the rendering takes at least 3-4 seconds - with each panel (A, B, C, D) rendering individually. 1 CPU core gets pegged at 100% during this.

Could it be a graphics card (HD3000) problem?

To test this, I can try at home later on a MBPro with and without discrete graphics enabled.

EDIT:Out of interest, what version of Preview do you have? Mine is 5.0.1

EDIT2: I just booted into Lion and tried it. Same problem. Very slow to render once the image is viewed at greater than "Actual size".

Last edited by Spectrum; Feb 12, 2013 at 09:39 AM.
Spectrum is offline   0 Reply With Quote
Old Feb 12, 2013, 08:04 PM   #4
JackRoch
macrumors member
 
Join Date: Jul 2010
Drat. I see what you mean now: dreadfully slow redraw here too.
I tried printing as pdf, pdfx, etc in the hope that it might force some change in the document but no luck when opening the resulting files in both Preview and Skim.

I did try opening it in PDFpen (demo version). Initially it opens quickly and thereafter for 6 or 7 clicks of the '+' button until transition from 161% to 177% whereupon it slows - perhaps not quite as much as in Preview.

Really sorry to have given you false hope in my first post!
JackRoch is offline   0 Reply With Quote
Old Feb 14, 2013, 04:55 PM   #5
Spectrum
Thread Starter
macrumors 6502a
 
Join Date: Mar 2005
Location: UK
Just wondering if this PDF renders quickly on anyone's system?

Mountain Lion perhaps?
Or on a 24 core MacPro?
Spectrum is offline   0 Reply With Quote
Old Feb 18, 2013, 06:14 AM   #6
Gogol
macrumors member
 
Join Date: Jan 2013
Location: The Netherlands
I have the same problem on late 2012 27" iMac (10.8.2)
How is the document created?
Gogol is offline   0 Reply With Quote
Old Feb 18, 2013, 06:44 AM   #7
Mr. McMac
macrumors 68020
 
Mr. McMac's Avatar
 
Join Date: Dec 2009
Location: Long Island, NY
Same problem here on a 2011 Mac Mini when viewing in preview except it's even slower than you mention. One the other hand, it loads instantly when I open it up in Chrome. No problem zooming and no hanging whatsoever.
__________________
Mid 2011 Base Mac Mini running Mavericks w/ 8GB of RAM, 2 TB Seagate Expansion USB HD, 46" Samsung Display, Logitech K750 Wireless Keyboard w/ Anywhere MX Mouse, Airport Express
Mr. McMac is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Applications > Mac Applications and Mac App Store

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
Filling PDF's in Preview RandmTask Mac Basics and Help 3 Apr 19, 2014 01:33 PM
PDF rendering in Safari extremely slow on Retina 15" MBP jonyive4 OS X Mavericks (10.9) 0 Oct 25, 2013 09:00 PM
File name in Preview PDF is always "Preview of Print" storkman14 OS X 10.8 Mountain Lion 2 Aug 23, 2013 07:47 AM
Resize PDF using Preview Itsallkosher OS X 10.8 Mountain Lion 0 Jan 29, 2013 10:27 PM
Apparent OSX/Preview PDF rendering bug amorton Mac Applications and Mac App Store 1 Aug 2, 2012 03:10 AM

Forum Jump

All times are GMT -5. The time now is 08:19 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC