A quick look: Acrobat 9 Pro Extended gives you all the PDF features of Acrobat Pro, plus features for 3D support and embedded video.

Intended as a replacement to Adobe Acrobat 3D, Adobe^® Acrobat^® 9 Pro Extended software enables business professionals to reliably create, combine, and control Adobe PDF documents. Acrobat 9 Professional Extended lets you create and share professional work with virtually anyone, anywhere. Unify the widest range of content--including documents, spreadsheets, e-mail, images, video, 3D, and maps--in a single compressed and organized PDF Portfolio.

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• Combine files
  Easily assemble documents, spreadsheets, presentations, graphics, web pages, and forms into a single Adobe PDF document. In fact, you can make a PDF from any application that prints. Present files in any order you want, regardless of file type, paper size, or orientation.
   

• Secure and control your PDFs
  If your PDFs contain proprietary or copyrighted information, Adobe Acrobat 9 Pro offers a variety of options for document security and integrity, such as password protection to restrict who can open the document, permissions that prohibit unauthorized printing and modification of the document, as well as digital signing and certification.
   

• Only in Extended
  The included Adobe Presenter software lets you create rich, interactive presentations. Pro 9 Extended allows conversion to FLV in PDF and embedded video in Microsoft Powerpoint. Adobe 3D Reviewer software combines multiple CAD formats in one assembly and saves as a PDF, and the program can convert 2D and 3D designs to PDF, without requiring expensive CAD or viewer software.

Technical Specifications

Windows System

• Hard Drive Space: 2.55 GB
• Operating System: Windows^® Vista, Windows XP w/SP2, Windows Server 2003 w/SP2
• Processor Speed: 1.3 GHz
• RAM: 512 MB
• Graphics: 1024x768 screen resolution, video hardware acceleration (recommended)
• Other: DVD-ROM drive, Microsoft Internet Explorer 6.0
• Supported UNIX Platforms: Sun Solaris^® 2.8 (UltraSPARC^®), IBM^® AIX 5.2 (POWER4 or PowerPC^® 604), SGI IRIX 6.5 (RISC 5000), HP-UX 11.0 (PA-RISC 2.0)