title_body: List of places to publish free ebook in PDF format I wrote a mathematics textbook (high-school level), in PDF format. It is free and I just want it to be as widely-distributed as possible.
  
  Converting it to any other format makes it awful. (It's merely awful when converted to .docx, but completely unusable when in .epub format.)
  
  Many websites (e.g. Smashwords) don't accept PDF though. So I'm wondering if someone could give me a list of sites where I can publish my PDF ebook.
upvoted_answer: Scribd (https://www.scribd.com/1) will let you publish a pdf for free.
  If your original manuscript was written in latex you could also convert that to an epub, although that it can involve a little work.