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jpeg/exif comment sections


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i'm developing a jpeg commenter - fast comment additions/ database/ and search functions

while working through various photo editors

i find that paint.net upon editing a jpeg

removes comments from jpeg file format comment marker section

and inserts them into the exif user comment section

if the program redits the jpeg after user adds comments to the JPEG part of the header

paint.net will move the comments in the jpeg part of the header and then overwrite the exif user comment section with the new comments from the JPEG section

is this clear and why does paint.net do this??

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Paint.NET does this because it's apparently what the GDI+ codecs do.

Behavior may be different in Win7, where the GDI+ codecs were rewritten to be wrappers over WIC.

The Paint.NET Blog: https://blog.getpaint.net/

Donations are always appreciated! https://www.getpaint.net/donate.html


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