I will manually do 40 PDF submission to high DA websites

Take a look about this gig:

PDF submission is an off-page SEO technique that can influence your website's ranking. By doing this your website can gain maximum visibility. I will do manual submission for your website on top High DA PA document sharing sites. I will submit to 100 Real High DA PA Document Sharing Sites. By taking some basic steps, Google will rank your site and, spreading your content across the web.

What you will get on this service:

• High authority backlinks
• 100 manually work
• Report file with login access
• White hat SEO technique
• SEO friendly
• Improve SEO
• Permanent links
• Safe from google updates