The onlyfans scraper accepts a file size limit in the form of a number. This number should be the number of bytes you wish to limit to. Mb, Gb et are not accepted as it is compared to the header response. Headers are in bytes. To find out the correct number do the following. Example: if you want to limit to 10mb, visit Google and type 10mb to bytes. Take that number of bytes it gives you and enter idly as the limit.