PDF submission backlinks are very good quality and permanent. Do follow backlinks, and your PDF or PowerPoint will stay forever on the search engine. I will manually submit your PPT or PDF to the top high-DA PA document sharing sites.PPT submissions on high-authority sites tend to rank faster for the targeted keywords as well. will convert your article to PDF and then submit it.
I will submit some popular sharing sites such as Scribd, SlideShare, Issue, Lulu, ZoHo, etc.
What I will do for you: