Are you looking to download for a particular subject, or are you interested in how to earn free unlocks by uploading your own documents?

If you aren't paying for the product, you are the product.

Tools like OneNote, Evernote, or browser extensions (e.g., Fireshot) let you capture portions of text or full pages for research and review.

The primary way to gain free access to documents on is through their "Upload to Earn" system.