OF does the conversion and they have it set up to compress the video to the same file size as the 1080p. It's been shown repeatedly. I realized this sorting files in harddrive and noticed that the 720p and source version of the same video had the same file size. This was on numerous vids too not just a one off. I looked at the codec and the source was 1080p 30 fps and the 720p was 720p with 60fps. There might be a few exceptions to this but for every file where I had both qualities 720p and 1080p/source they were the same size. If the source file is 4k then I'm not sure how the file sizes work out with OF compression. I haven't verified whether the sizes are all different there. Usually the 4k source videos have huge file size jumps.


























But people really need to give up on this source version thing with onlyfans. Most of the source videos are simply just 720p... you can look at the codec info. OF isn't artificially making the 720p files bigger. and if you take a 1080p file and scale it down to 720p it's not exactly half the size... so interpolating an extra frame isn't going to make the file sizes magically match.....