| S.No. | Top 20 PDF Submission Sites | Month |
|---|---|---|
| 1 | https://issuu.com/ | June-17 |
| 2 | https://www.scribd.com | June-17 |
| 3 | http://pdfsr.com | June-17 |
| 4 | http://www.edocr.com | June-17 |
| 5 | http://doocu.co | June-17 |
| 6 | http://sliderocket.com | June-17 |
| 7 | http://mininova.org | June-17 |
| 8 | http://slideboom.com | June-17 |
| 9 | http://rapidshare.com | June-17 |
| 10 | http://filestube.com | June-17 |
| 11 | http://powershow.com | June-17 |
| 12 | http://gazhoo.com | June-17 |
| 13 | http://knowfree.net | June-17 |
| 14 | http://kewlshare.com | June-17 |
| 15 | http://uploading.com | June-17 |
| 16 | http://easy-share.com | June-17 |
| 17 | http://hotfile.com | June-17 |
| 18 | http://depositfiles.com | June-17 |
| 19 | http://megafileupload.com | June-17 |
| 20 | http://mediafire.com | June-17 |