I have been using Fabrik to read epub's and mobi's. However some of the books given to me by my organisation are in pdf format. Fabrik doesn't seem to like a lot of these pdf's and I assume this is because of some kind of DRM built into them. I have tried using Calibre to convert these pdf's to epub's but I think it will take me a long long time to figure out the settings to get the output in a readable format.
So my question is, is there a pdf reader on the market that supports syncing progress to the cloud like Fabrik does for pdf's?