From: http://fliphtml5.com/fliphtml5-your-pdfs-freely-makes-them-seo-friendly.php How Flip HTML5 helps to make PDF SEO friendly? There are two ways to make your PDF file and digital publication search engine optimization friendly. First of all, write attractive title, description and keywords meta elements for your PDF and digital publication. What's more, there is text version for your digital publication once you convert PDF to digital publication.