Tabbloid is a project from Hewlett-Packard that turns your feeds into a pdf document (someone call it a magazine). All you need to do is point it at one or more feeds, set up a delivery time and you will get a nicely formatted pdf file by email. You can also generate a pdf on the fly from one or more feeds.

As a joke, I try it with the PrintScreen feed. You can see a screenshot here or download the resulting pdf file.