Adobe Reader for iOS has just undergone a major update. The app’s 10.2 update offers more utility with the addition of an impressive suite of new annotation and form-filling features to the otherwise spare PDF reader.

Adobe Reader 10.2 for iPhone and iPad introduces a variety of tools for marking up PDF files. These tools can be accessed by tapping and holding on any part of a page to bring up the context menu or by using the commenting toolbar at the top of the screen. With the latest version of Adobe Reader, you can now add sticky note comments, freehand drawings, and even your signature to a page. Also, you can now highlight, strikethrough, and underline text. Most of these tools come with customization options, including adjustments for color, thickness, and opacity. Note, however, that these are automatically disabled for protected documents, as I’ve discovered while trying to annotate my electronic phone bill.

The annotation tools are disabled for protected PDF files.

Filling out forms is now supported as well by Adobe Reader. This feature is particularly useful to organizations that deal with electronic forms on a regular basis. As an individual, though, you can take advantage of this capability in filling out, say, an application form for certain government documents or an application form for a new iPhone postpaid plan.

Access to PDF links, file search, file list thumbnails, retention of last viewed position in a document, and support for the Adobe Echosign e-signature service are also included in this update. Install it now or download Adobe Reader in the App Store for free.