Is there a way to export all your favorites from Pocket? Preferably to PDF.
They provide the following tool (https://getpocket.com/export) to export all your articles to HTML, neatly grouped by unread/read. The tags and the timestamp at which the article was added are present as attributes on the links.
The problem is that there is no way to find what are the favorites.
For that you will have to use their API, that supports retrieving only the favorites. Or you could bulk-tag your favorites with a "favorite" tag, and use this tag when exporting to html.
If you use Chrome, once you go to the favourites page (https://getpocket.com/a/favorites/list/), press Ctrl+P and in Destination choose Save as PDF.