AutoInk is a plug-in for Adobe Acrobat software. It is designed to provide native support for new handwriting recognition, inking and pen features available in Windows Vista (all editions but Home Basic) and Windows XP Table PC edition. The plug-in provides a set of Acrobat tools for easy PDF document annotation using pen input and handwriting text recognition. Use these tools to write notes, draw, doodle, fill form fields and mark up document content.