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    High CPU usage while scrolling in PDF

    Discussion in 'Windows OS and Software' started by skyandspace, Oct 11, 2009.

  1. skyandspace

    skyandspace Notebook Consultant

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    I've noticed that to scroll through some pdfs that have scanned images that it takes up to 80% of my CPU resources and the scrolling is very jerky. I have a P8700 dual core processor.

    Any ideas why this could be happening?
     
    skyandspace, Oct 11, 2009
    #1
  2. newsposter

    newsposter Notebook Virtuoso

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    what kind of video card
    are the video drivers up to date
    what pdf reader are you using
    what os and patch level
    etc, etc, etc.
     
    newsposter, Oct 11, 2009
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  3. Peon

    Peon Notebook Virtuoso

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    *Sigh* Adobe Reader... It's so poorly coded that it can choke a desktop i7 under the right (or should I say, wrong) circumstances.

    Do you know what resolution the original images were? If they were 10 MP photos or something, that's going to be a problem no matter how fast your computer is.
     
    Peon, Oct 12, 2009
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  4. MidnightSun

    MidnightSun Emodicon

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    Adobe Reader/Acrobat tends to run slowly and use high CPU in PDFs with many images - this is especially an issue in Acrobat 8, and Acrobat 9 is a little bit better.

    If this gets to be a big problem for you, you can use SumatraPDF or Foxit instead, both of those use much less CPU. I use Acrobat, though, since it has many features that both of those lack that I use quite often.
     
    MidnightSun, Oct 12, 2009
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  5. KingRaptor

    KingRaptor Notebook Evangelist

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    Short answer: It's Adobe PDF reader. It's crappy.

    Try foxit like MidnightSun said.
     
    KingRaptor, Oct 12, 2009
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  6. Aerows

    Aerows Notebook Evangelist

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    King's right. Adobe Reader is just bad, like MidnightSun said.
     
    Aerows, Oct 12, 2009
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