Adobe Acrobat 8 Professional is a Office Tools software developed by Adobe Systems. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Adobe Acrobat 8 Professional:

Adobe® Acrobat® 8 Professional software enables business professionals to reliably create, Combine, and control Adobe PDF documents for easy, more secure distribution, collaboration, and data collection. Protect sensitive information with passwords, permissions, and digital signatures. Enable users of Adobe Reader® software (version 7.0 or 8) to participate in document reviews, fill and save forms, and digitally sign documents.