PNG file double in size when resized to 75% in MS-Paint


  1. bawldiggle
    Posts : 1,002
    XP Pro (x86) | 7 HP (x86) & (x64) | 7 Pro (x64)
       New #1

    PNG file double in size when resized to 75% in MS-Paint


    ORIGINAL
    created with "Print Screen" and cut/copy/pasted PNG image into MS-Paint
    Saved image as PNG, the default offered by MS-Paint

    PNG file double in size when resized to 75% in MS-Paint-1_shiftoff-unverified-publisher.png

    RESIZED TO 75% OF ORIGINAL
    - in MS-Paint using resizing feature

    PNG file double in size when resized to 75% in MS-Paint-2_shiftoff-unverified-publisher.png

    What am I doing wrong ?
    I have read PooMan UK's sticky thread Vector vs Bitmap but I don't know how I should be processing images, obviously MS-Paint is not the solution. I get it that PNGs are bitmap and not vector, but that is where I am lost

    Would appreciate which app should I be using ? Will Paint.NET be appropriate ?

    Thank you :)
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  3. z3r010
    Posts : 51,467
    Windows 11 Workstation x64
       New #2

    Paint.NET would be better.
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  4. LMiller7
    Posts : 2,497
    Windows 7 Pro 64 bit
       New #3

    MS-Paint was designed as a small and simple paint program for people with modest needs. It has few features and options.

    PNG is a lossless image compression file format. Likely the original file had a fairly high level of compression. Reading a compressed file is much simpler than writing it. Most likely the file had a level of compression that the program was able to read but not duplicate when saving it. So it did the best it could which resulted in a larger file, even with a smaller image. If this is not acceptable you need a more advanced program.
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  6. ThrashZone
    Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       New #4

    Hi,
    Paint.net or free gimp is a heck of allot better and do a heck of allot more.
    GIMP - GNU Image Manipulation Program
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