Time Expire My PDFs

I have a need for a project I saw posted on this site a couple years back. Here was the original description and details. Mine is the same. At this time my budget is similar (cheap till we see if we make any money:) Here it is Closed Budget: $100-300 Created: 06/21/2005 at 11:56 EDT Description: I have a number of PDF's that I would like to send out. However I do not want to use a password system as it takes too much time to manage. I would like to be able to have an in-built function in the pdf that would enable me to specify when the pdf would expire. For example 2 weeks after first opened by the user. This does not have to be world class security just something that will stop your everday users from keeping the pdf beyond the time they are meant to. Ideally it will be for Mac and PC. Prefer it if the user did not have to download software to unlock the PDF. A Javascript solution could be the answer as I have read it is possible. I must be able to alter the length of time myself and the time breaks would be something like: 1 week 2 weeks 1 month 3 months 6 months Above was the description I found. Here are a few more details. If you would like to see the web site, the web site is [login to view URL] (must access off home page as the site is not live) Purchases are now set at $.10 while we test the site. I can send you a sample pdf (created using Adobe Acrobat 8.0) People have access to the site for 7 days, but to keep it simple (for now) they can download the forms to their computer. I want to time expire the pdfs they download. Will this work?