I've been using Paint.net for ages and it is a wonderful tool for simple and quick image editing. However, there's this one thing that bugs me: no way to disable chroma subsampling. Sometimes it's okay to use chroma subsampling to save space but sometimes the results are horrible, this is one example that shows the issue: Size before uploading: 1,41 KB, png (lossless RGB) Size before uploading: 61,0 KB - progressive jpg, 100% quality, no chroma subsampling, XnView Size before uploading: 42,9 KB - 100% quality, 4:2:0 chroma subsampling, Paint.NET What happens in noisy image: Png.
Jpg. Quite horrible. Sure, in this case PNG is superior format in every possible way but imagine if that was part of a larger image. It would still look like that even though the rest would look okay (although I never use jpg chroma subsampling myself - it just hurts the colours and image quality too much). I'd really appreciate option to switch between most common subsampling modes like in PSP for example: Though three most common modes would be just fine i.e. 4:4:4 (no subsampling), 4:2:2 and 4:2:0. Also progressive jpg support would be nice too since it's usually smaller. That's something I'd really like to see in the future version - also I'm really looking forward to 4.0!