2. https://www.edocr.com/
  3. https://www.4shared.com/
  4. https://www.mediafire.com/
  5. https://www.dropbox.com/s/
  6. https://www.transferbigfiles.com/
  7. http://www.authorstream.com/
  8. https://www.slideserve.com/
  9. https://visual.ly/community/
  10. https://postimg.cc/BtDKv5Hp
  11. https://www.authorea.com/
  12. https://zoimas.com/
  13. https://issuu.com/
  14. https://www.scribd.com/
  15. https://uniquethis.com/
  16. https://www.zippyshare.com/
  17. https://jumpshare.com/
  18. https://www.pdfescape.com/
  19. https://www.yumpu.com/
  20. https://www.academia.edu/
  21. https://www.diigo.com/
  22. https://smallpdf.com/
  23. https://www.sejda.com/
  24. https://edu.pittsburghtribune.org/
  25. https://www.docdroid.net/
    26.