Customisation

Hi, I have created a basic flash tool so customers can customise wording on the invites that we print. Currently the tool works like this: 1. Customer chooses template 2. Customises the wording the template 3. Submits the form I have good Flash Knowledge, but not extensive enough…I want to be able to: 1. create a PDF from that 1b. Generate locked PDF for customer with watermark. 2. I want customers to be able to have a BUY IT NOW from the eBay listing Description, which mirrors the eBay buy it now function. 3. Possibly change the tool platform to HTML5. Thanks