Regarding PDF submission sites list with instant approval to add PDF files, just click on sign up button at the relevant site for registration; use the upload button and include the location of PDF file creation via the search bar.
http://en.calameo.com/
http://issuu.com/
http://www.4shared.com/
http://www.authorstream.com/
http://www.calameo.com/
http://www.doocu.co/
http://www.powershow.com/
http://www.scribd.com
http://www.slideshare.net/
http://www.thelinkindia.com/
https://app.box.com/
https://medium.com/
https://www.box.com/
https://www.mediafire.com/
https://www.slideboom.com
www.lulu.com
http://en.calameo.com/
http://issuu.com/
http://www.4shared.com/
http://www.authorstream.com/
http://www.calameo.com/
http://www.doocu.co/
http://www.powershow.com/
http://www.scribd.com
http://www.slideshare.net/
http://www.thelinkindia.com/
https://app.box.com/
https://medium.com/
https://www.box.com/
https://www.mediafire.com/
https://www.slideboom.com
www.lulu.com