Specify Folders

Imsanity doesn’t look at the actual files on disk – it uses the WordPress “Meta” database table which has a record all of the uploads.

Based on what you wrote, it would seem that buddypress isn’t using the standard WordPress upload functionality and is using something custom – probably for good reason due to the nature of buddypress. Unfortunately it means that Imsanity doesn’t have any awareness of these images.

What I might recommend is simply doing this from the command line using a script like this for example https://www.smashingmagazine.com/2012/09/09/resizing-bash-script-batch-resizing-using-command-line/

Unfortunaetly I supposed this means galleries by NextGen would also not be “fixed” by Imansanity?

Yea, the way all plugins work is that they “hook” into the API provided by WordPress. But, it’s also possible to do things beyond or outside the WordPress API, in which case there’s no way for other plugins to interoperate with them.

I could spend time hunting down all of the various plugins and themes out there that do custom uploads and see if there was some way to hack them to make Imsanity work (I have thought about doing this for some of the really popular ones). The perfect solution though is for those plugins to just make sure that image uploads go through the proper WordPress upload process. Then Imsanity and any other similar plugin will just work automatically!

By the way, NextGen gallery has it’s own feature for resizing images. If you go to Next Gen “Other Options” there is a configuration setting for limiting the size of uploaded gallery images.

NextGen kinda operates outside of WordPress – the images uploaded to the gallery don’t get added to the WordPress media library. They’re stored in NextGen’s own gallery folder. It does also have it’s own hooks, notably ‘ngg_added_new_image’ but I didn’t see the point in adding Imsanity integration, since the equivalent functionality is already there in NextGen.