Convert E-Mails to files (i.e., PDF) in which can easily be transfered back to the original E-Mail format (i.e., HTML)

Hello, Thank you for your interest. Convert E-Mails to files (i.e., PDF) in which can easily be transfered back to the original E-Mail format (i.e., HTML). All of the E-Mail content is to be the same when it is transfered back to its "original" format (perfection is required). There are less than 500 folders which consist of thousands of E-Mails. The lowest bid will, likely, be accepted. (Easy project.) Please provide an example (screen shots): E-Mail converted to file (i.e., PDF); then, convert the it back to its original format. Thank you. Sincerely, Ryan