Thing is, Webadmins at Jab's site have embedded up to 5 different safety measures on every pic, so what I'm focusing right now is in download everything, step by step, next step is to convert the images to another format, with a specialized tool, that automatically removes the embedded extra info (this a 2 step process, 1 to move to a RAW format and apply the filter, then 2 convert back to a more normal format, like jpeg or png)I don't know if they included small watermarks for tracking. I believe you can over-paint using special soft like watermark removals. It something like AI with Photoshop. It will keep color good gradient background (I don't how to properly explain it). Some people did the similar job with Otto Maddox comixes posted @ shentai to remove disgusting shentai watermarks. It was 10 years using Photoshop but we live in 2023 now...
Next is to run the images into a watermark remover, so if there's some sort of hidden extra, this will take care of it