Crap subject line, but if I knew what this is called I probably wouldn't need to post!
A client is talking about a great online tool that they have seen which allows you to search across a number of PDf files and create a new custom PDF containing snippets and blocks of the source file. They one they have seen then lets you purchase just those snippets. The idea is that if you are selling PDFs you can sell just parts of them instead.
The solution they are looking at (
http://bit.ly/glKBZ7 ) seems technically very good, but there are some drawbacks on the business side of thing. We're wondering whether there are other options out there.
I thought that a few people here might be in the digital download market and either a) Knew of some alternatives, or b) might just find this interesting.