>>2140576>It won't introduce any new artifacts unless you ramp up the compression factor.You're the illiterate here, chroma won't get worse but luma will as applying quantization over and over again will make artifacts more visible. Same goes for any other kind of lossy compression, like mp3. If you want a proof, see pic related.
>If you think transcoding lossy>lossless and thus increasing filesize fourfold is the correct way to not introduce new artifacts, you and your edits belong in the garbage bin.Then please tell me how to not introduce artifacts, given that you don't have the control over others editors settings, and the amount of times the image is going to be modified.