I did not understand (non-native english speaker here) if it was a software, or an tool online (requiring the documents to be uploaded on the cloud). Can you provide some more information on this part?

Hey! Thanks for reaching out. We are a tool online which requires your documents to be in the cloud, but can slot into which cloud storage provider you are using (i.e. Dropbox, Box) easily. Ping me at [email protected] and I'd be happy to walk you through it and get you guys set up.

Do you have Onedrive support?

Hey, we can build Onedrive integration. If you ping me on [email protected] I'd be happy to discuss.

This is very cool, I love the idea! I am curious - do you store deltas between versions or the whole slide for each version? What kind of representation do yo use for a slide to allow computing deltas?

Hey! So, we store the whole slide. In terms of deltas, we found the easiest way around it was a combination of tracking the slide through it's markup (OpenXML sucks, but you can extrapolate some UUIDs which help with tracking.) A lot of our analysis actually comes from the images themselves though, as they are an easier format (I.e. to help us see if the slide has changed.)