Adobe Acrobat 7 Professional - Manual (Page 434)

Using links
Links, or hyperlinks, let you jump to other locations in the same document, to other electronic
documents including attachments, or to websites. You can use links when you want to ensure that
your reader has immediate access to related information. You can also use links to initiate actions.
You can also add actions to play a sound or movie file. (See
Integrating media into documents .)
Clicking a link jumps to another page, document, or website.
Related Subtopics:
Creating links
Changing the appearance of links
Adding actions to a link
Editing links
Creating links from URLs
Removing all web links
Linking to file attachments
Using destinations