How does this handle large PDFs?

Discussion in 'MacBook' started by David58117, May 11, 2015.

  1. David58117 macrumors 65816

    Jan 24, 2013
    I'm thinking of selling my 15" for this. I don't really do anything processor intensive, or need ports.

    I really just want something to view large pdfs (3-4000 pages).

    I use Skim..
  2. noi747 macrumors newbie

    Aug 8, 2011
    FYI, I'm running on my base rMB. my largest pdf file sized about 350MB and 7,200 pages in total.

    It took 10 second on average to open this file. but once it's opened. I'm able to smoothly scroll it, jump to anywhere on the file in a flash.

    My other large files are 150 MB in size. and all of them can be open much faster than the largest one above.
  3. Kristine macrumors 6502a

    Feb 21, 2005
    I sold my high-end 15" rMBP (current model) for my base rMB. I read A LOT of medical research journals. Would not go back to the 15".

    I agree with these statements.

    You'll be fine with the Macbook.
  4. HengenJL macrumors 6502a


    May 27, 2007
    Rochester, NY
    I have an 780MB PDF of 1200 DPI scanned photos from a previous job that I test on the rMB and it works perfectly.
  5. wolfie macrumors regular

    Apr 11, 2008
    Im going to throw the cat among the pigeons.

    I find it hard to believe it works 'perfectly'. I often open demanding PDF's (medical textbooks) and it is not smooth. there is a jumpy/lag feel. Sometimes I even get the spinning beach ball.

    Ive got a 1.2
  6. at0m macrumors newbie

    Sep 7, 2012
    For what it's worth on PDF's I don't think it has to be huge, I haven't tried this on a rMB but on my cMBP ( quad 2.2 ) this one is a killer:

    only 2 pages, around 20MB.. zoom to actual size to read the trail maps and scroll around == death for my cMBP.. not sure what secret sauce they put in that PDF :) I'd be curious if the rMB handled it smoothly via some new CPU instructions or something that my old cMBP doesn't have.
  7. David58117 thread starter macrumors 65816

    Jan 24, 2013
    Wow, thanks for killing my 2014 11" air!

    Ill try my 2014 15" retina later!
  8. legioxi macrumors 6502a

    Mar 2, 2013
    1.2rMB and it beechballs a lot on that specific PDF.

    My tech manual PDFs, 5-150MB, 100-1200 pages each, all work flawlessly though.
  9. snapper64 macrumors regular

    Aug 28, 2007
    Same experience with my 1.1GHz MacBook, Preview becomes unusable and everything grinds to a halt.

    It's definitely not a MacBook specific issue though, I loaded the same file on my 15" rMBP and the same thing happens (even if I force it to use the discrete GPU). It's either an issue specific to that PDF or more generally Preview not working well with a PDF containing very high resolution graphics.

    EDIT: Just to add I've been working with other large PDF's fine so far. A 300MB 1200 page textbook works perfectly.
  10. Cape Dave macrumors 68000

    Nov 16, 2012
    That PDF sucks on my retina iMac i5 512GB 295x. Ouch.
  11. johngwheeler macrumors 6502

    Dec 30, 2010
    I come from a land down-under...
    Kills my 2.3GHz rMBP 15 too!

    Even with the dGPU enabled, this PDF beach-balls my late-2013 quad-core rMBP 15, for about 7-10 seconds each move.

    Interestingly CPU is only just over 100%, which is for one CPU thread (maximum is 800% due to quad-core with 2 hyper-threads per core), so it's not really CPU bound, unless Preview runs single threaded!
  12. sunfire7 macrumors member

    Oct 23, 2012
    Beach ball for maxed rMBP 13'', 7-8 secs between zooms and moves
  13. JTToft macrumors 68040

    Apr 27, 2010
    Aarhus, Denmark
    - Pretty much unusable on my 2.2 i7 cMBP as well. Something's up with that file.
  14. fatefulwhisper macrumors regular

    Jul 24, 2008
    my hunch is that Preview wasn't optimized to handle such a highly detailed PDF file properly; it's good for smaller, less detailed (or mainly text) PDF files.

    I installed Adobe Acrobat Reader and it opens this file fine on the rMB. Although the CPU rises up to 160%, it is still able to handle the file fine. I even opened the PDF file in Photoshop and it's smoother on Photoshop; although it seems to render the file first (but keeps the same pixel density and dimensions).
  15. MyopicPaideia macrumors 68000


    Mar 19, 2011
    Trollhättan, Sweden
    There is a lots of different things that can be happening with the internal "formatting" of the individual objects in the PDF's as well. If they are not optimised correctly, they can be huge pains to use. Sometimes Adobe Acrobat is better for these than Preview. I have noticed that PDF's that originated in OS X or Apple's ecosystem (iTunes U for example) all have worked flawlessly regardless of size even on iPads of various generations, while one can almost immediately tell when one runs across PDF created with a third party app amd hasn't been properly optimised.
  16. theSeb macrumors 604


    Aug 10, 2010
    Poole, England
    It's a pity that Adobe forgot what pdf actually stands for - portable document format.
  17. Niarlatop macrumors member

    May 13, 2015
    This file works perfectly fine in Firefox's native PDF reader, it takes a little while to load at first but you can scroll smoothly afterward. I guess it's just an issue specific to Preview and it must happen on every Mac.

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