Adobe Acrobat Pro is the full version of Adobe Reader. PDF is the most common file format for E-Books. Almost all the website uses PDF format to as the standard for giving downloadable information pages or printable forms.
Adobe Acrobat provides the set of applications to edit, create and manage your PDF files. Adobe Reader is the small version of Adobe Acrobat which is distributed freely so that people can view PDF files and no other functionality.
A lot of improvements have been made to the PDF files created by Adobe Acrobat 9. Most important thing is the reduced file size. Any PDF file you have can be reduced by its file size by the better compression options. But it may lose the compatibility with older versions of Adobe Reader.
Many features make the PDF format, the unique and unchallenged. Password security or security certificate can be added so that no one can copy or alter the contents of your file. Forms, headers and footers, and multimedia support are great. Multimedia support include audio, video and image (both 2D and 3D) in many formats.
With the install, the program is integrated into Microsoft Office too. So, we can easily create PDF files from any MS Office document by the help of the toolbar (which I think slows down the whole system and may cause MS Office to hang).
OCR Text recognition helps to recognize the letters from an image. It makes us easier to search the file and reduce its size. OCR operation is fairly fast comparing to the popular "ABBYY Finereader", but I think it has fewer options to customize.
Automation is easy and the whole of windows OS is filled with its menu options. Just right click on a bunch of PDF files and click "Combine supported files into...»
I really like this program because I have a big collection of E-books and need to do many operations on them. Considering its features I rate it 4, although it is really slow and overpriced according to me.