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Windows 7: PNG file double in size when resized to 75% in MS-Paint

20 May 2017   #1

XP Pro (x86) | 7 HP (x86) & (x64) | 7 Pro (x64)
PNG file double in size when resized to 75% in MS-Paint

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

- 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 :)

My System SpecsSystem Spec
20 May 2017   #2

Windows 10 Workstation x64

Paint.NET would be better.
My System SpecsSystem Spec
20 May 2017   #3

Windows 7 Pro 64 bit

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.
My System SpecsSystem Spec

21 May 2017   #4

Win-7-Pro64bit 7-H-Prem-64bit

Hi, or free gimp is a heck of allot better and do a heck of allot more.
GIMP - GNU Image Manipulation Program
My System SpecsSystem Spec

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

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