Adobe Acrobat 9 Professional software enables business professionals to reliably create, combine, and control Adobe PDF documents for easy, more secure distribution, collaboration, and data collection. Combine files from multiple applications, collaborate on documents via e-mail or server, and collect information with electronic forms. Protect sensitive information with passwords and permissions. Enable users of Adobe Reader software (version 7.0 or 8) to participate in document reviews, fill and save forms, and digitally sign documents.