Also, these guys offer a service similar: http://payloadz.com/

Rob – That does look like an interesting product and quite feature rich.

I noticed on your site, you use Cafepress for your printed material. How do you find the quality of the books they produce? Also, do they offer full colour book printing for distribution in the UK? I couldn’t find any information about that anywhere.

Adam also sells PDFs online and might be able to give some advice.

Good luck!

Ryan Cambell – Hey Ryan. I’d forgotton you were going through something similar actually. This sounds exactly what I’m after. Let me know when you’re done and I’ll try and get to work on it. Not so sure how to implement al this talk of hashes and things…

I’d be really interested to hear what you end up doing.

I’m in the same boat and stepping through the process. Basically, I am trying to direct users to a secure pdf download. Paypal returns to our site, and a page process the download. I started with the following code:

$dir=”yourdir/”;

$file=$dir.”filename.psd”;

header(“Content-type: application/force-download”);

header(“Content-Transfer-Encoding: Binary”);

header(“Content-length: “.filesize($file));

header(“Content-disposition: attachment; filename=\”haha.psd\”");

readfile(”$file”);

This works pretty well because you can hide the path and filename from the user, so the only way to access the file is some good guessing. It is not 100% safe though, so I am in the process of trying to implement what they suggested – keeping the file outside of the web file structure.

Anyways, once my setup is finished I will let you know. You are more than welcome to use my code. The only difference with mine is that we have a database with username/passwords so it is easy to verify. In yours, some type of hash code will need to be stored just as Ryan suggested.