jpeg image, acrobat professional 8 and windows paint application


  1. Posts : 469
    Win 7 home premium 32 bit
       #1

    jpeg image, acrobat professional 8 and windows paint application


    yesterday i scanned 4 pages from acrobat professional 8 by benq scanner 5000. the file size was 500kb. then i saved the 4 pages into jpeg format, with each file size of 150-200kb.

    then i opened the files in windows paint, and did some basic editing nothing major, when i saved the modified image, the size of 4 jpeg files varied from 500kb to 1.2MB

    i dont understand why the file size ballooned so much after simple editing in windows paint
      My Computer


  2. Posts : 934
    Windows 8.1 ; Windows 7 x86 (Dec2008-Jan2013)
       #2

    JPEG format is not like text document, where you can correct one letter and size of the document won't change.

    In JPEG when you edit even two pixels, whole image will be rebuild and repacked. Your images might have compression factor of 65, but MS Paint has fixed factor somewhere between 75 and 85 (do not quote me on that though).

    MS Paint has average default settings for saving JPEG, which are might be good for some pictures, but not for others. For MS Paint settings are fixed, pre-programmed, and you can not change them.

    Thus, I would recommend using othe software where you can manually change saving quality factor,
    like paint.NET
      My Computer


 

  Related Discussions
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 10:42.
Find Us