Free pdf submission sites list 2021
PDF submission is an off-page SEO technique that is one of the most influential ways of backlinking. It helps in submitting the PDF to various sites and gain maximum visibility for your website. The PDF documents can be optimized for getting higher ranks in the results of the search engine.
https://www.slideshare.net/
https://www.edocr.com/
https://www.issuu.com
https://docdro.id/
https://www.pearltrees.com/
https://www.datafilehost.com/