We're working with a client who gets about 80% of their organic, inbound search traffic from links to PDF files on their site. Obviously, this isn't ideal, because someone who just downloads a PDF file directly from a Google query is unlikely to interact with the site in any other way. I'm looking to develop a plan to convert those PDF files to HTML content, and try to get at least some of those visitors to convert into subscribers. What's the best way to go about this?  My plan so far is: Develop HTML landing pages for each of the popular PDFs, with the content from the PDF, as well as the option to download the PDF with an email signup. Gradually implement 301 redirects for the existing PDFs, and see what that does to our inbound SEO traffic.  I don't want to create a dip in traffic, although our current "direct to inbound" traffic is largely useless. Are their things I should watch out for?  Will I get penalized by Google for redirecting a PDF to HTML content? Other things I should be aware of?