Tcheluskin

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  1. Ego Eram Reputo I tried saving to 16-bit BMP and TIFF with different settings of Transparency from 0 to 255 in the save dialogue, the result does not change. The dithering appears constantly only for 16-bit, not for 256 or 16 color. UPD: Tried on the other PC with Windows 7 64-bit, Paint.NET 4.0.19, downloaded the LowColor plugin just now — the same dithering always present. UPD2: Pardon, probably you've meant the Transparency property of the layer in the Paint.NET itself. It was always 255 (not transparent).
  2. Hello. I got an issue: when saving images to 16-bit BMP or TIFF, they always become dithered, despite of setting Dither = 0 in the save dialogue. Can it be fixed, please. I'm using Paint.NET 4.1.6, Windows 7 32bit. Attaching the sample original and converted-to-16bit image. BMP_to_16bit_sample.zip
  3. Hmm… Tried to run optipng.exe manually in Command prompt window. When converting PNG->PNG, the program always keeps the original resolution, no matter -preserve option present or not, and rewriting the same or writing to the new file. When converting BMP->PNG, the program never keeps the original resolution, no matter -preserve option present etc. And with TIF-file it returns an error: "Unsupported compression in TIFF file". However, when converting any file, even PNG, with the Paint.NET's OptiPNG plugin, in never keeps the resolution. The only workaround I see now for myself, is to save the file from Paint.NET with its standard PNG-converter, and then compress it by calling optipng.exe manually (e.g. by Windows context menu command).
  4. Thanks for the link to OptiPMG manual. Probably the right option is −preserve (Preserve file attributes (time stamps, file access rights, etc.) where applicable.) However I did not found this option in Paint.NET OptiPNG file save dialog; and I don't know how to activate it another way.
  5. How to make OptiPNG plugin NOT to change file rezolution during save?