By default, Adobe Reader 7 retains a list of up to five of the most recently accessed PDFs. This makes it easy to locate a document that you have currently viewed. However, if you read many PDFs, you might want it to increase the number of recently-accessed files that it lists. To do this, use the steps provided in this tutorial.
1. Click Edit, and then select Preferences.
2. In the Preferences dialog box, select Startup in the left pane.
3. In the right pane, scroll the arrow up to 10 next to Maximum documents in most-recently used list.
4. Click OK.
