I have a brand new Lenovo E531 that is freezing up for a split second when scrolling. Specs are i5-3230M and 4 GB of RAM, nothing all that powerful, but it should be more than enough to load up a PDF.

Everything else loads up nice and speedy, this is the only issue the computer is having. CPU usage is around 10-20% when scrolling thru, and RAM is 40-50% so nothing I can tell is overloaded, I've tried uninstalling and re-installing Adobe Reader to no avail. I though maybe HDD being the issue, but wouldn't it just load into RAM?

Reader

They are typically 50MB PDF's and Adobe uses 50MB when there isn't a PDF open and 100MB when the PDF is open, so I assume it is going into RAM. I'm simply lost as to why it would not be able to scroll smoothly thru a PDF, I dusted off my 4 year old AMD Turion laptop with 2 GB of RAM (and Windows 7) and it scrolls thru the same PDF just fine. Before other programs are suggested, I have tried several and none of them will open these PDF's correctly, the menu's get all weird on me and you loose the table of contents on half of them. I have a brand new Lenovo E531 that is freezing up for a split second when scrolling. Specs are i5-3230M and 4 GB of RAM, nothing all that powerful, but it should be more than enough to load up a PDF.

Jul 16, 2013  Hey Everyone, I'm having and issue with Adobe Reader. Whenever I load up a PDF into adobe reader, the scrolling tends to be very choppy and slow but when I open the same PDF in Preview, everything runs smoothly and nice. Adobe Reader for Mac is an essential application for reading, printing, marking up, and commenting on PDF files. Good functionality: With Adobe Reader for Mac, you can do more than just view.

Everything else loads up nice and speedy, this is the only issue the computer is having. CPU usage is around 10-20% when scrolling thru, and RAM is 40-50% so nothing I can tell is overloaded, I've tried uninstalling and re-installing Adobe Reader to no avail. Generic usb hub driver for mac. I though maybe HDD being the issue, but wouldn't it just load into RAM?

They are typically 50MB PDF's and Adobe uses 50MB when there isn't a PDF open and 100MB when the PDF is open, so I assume it is going into RAM. I'm simply lost as to why it would not be able to scroll smoothly thru a PDF, I dusted off my 4 year old AMD Turion laptop with 2 GB of RAM (and Windows 7) and it scrolls thru the same PDF just fine. Before other programs are suggested, I have tried several and none of them will open these PDF's correctly, the menu's get all weird on me and you loose the table of contents on half of them. @ Although for printing some if it will affect you viewing PDF's as well, see below and its straight from Adobe so don't kill the messenger, and so much for Portable Document Format.

Troubleshooting PDF Printing: Printing Complex PDF's: I have found printing a PDF to a PDF Printer (either Adobe PDF, PDF Creator, CutePDF) usually fixes a ton of issues with PDF's. Almost forgot, using pretty much any other viewer other than Acrobat usually either fixes or reveals the problem with the PDF, on Linux you could use xpdf which is a bare bones PDF viewer which if you can't view it with that the PDF is hosed for sure. @ Although for printing some if it will affect you viewing PDF's as well, see below and its straight from Adobe so don't kill the messenger, and so much for Portable Document Format. Troubleshooting PDF Printing: Printing Complex PDF's: I have found printing a PDF to a PDF Printer (either Adobe PDF, PDF Creator, CutePDF) usually fixes a ton of issues with PDF's. Almost forgot, using pretty much any other viewer other than Acrobat usually either fixes or reveals the problem with the PDF, on Linux you could use xpdf which is a bare bones PDF viewer which if you can't view it with that the PDF is hosed for sure.