XNView 2.50
Some GIFs displayed as GIF flattened.
GIF flattening
Moderators: XnTriq, helmut, xnview, Dreamer
Re: GIF flattening
According to XnView, your sample has different DPI values for X and Y (72×18). Adjust zoom if X/Y DPI are different in Tools → Settings… → General → General usually takes care of that. It makes no sense that the sample file is displayed correctly, if this option is turned off
Re: GIF flattening
Unchecking this option are fixed problem.
So it's probably a good idea to show a warning to the user or a message in the status bar in this case.
This warning could have a button to invoke the SET DPI dialog box.
So it's probably a good idea to show a warning to the user or a message in the status bar in this case.
This warning could have a button to invoke the SET DPI dialog box.
Re: GIF flattening
Yes, I agree.
As far as I know, the GIF file format (GIF87a/GIF89a) doesn't support DPI settings.
- GIFLIB documentation: Bits and Bytes
- Adobe Support Community: GIF exporting from Photoshop at low resolution and at a larger size
- Wikipedia: DPI or PPI in digital image files
Re: GIF flattening
tl;dr, but Change DPI tool work fine with this file
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- Скриншот 2021-09-06 04.33.22.png (5.99 KiB) Viewed 390 times