Adobe Illustrator CS5 | User guide in PDF Adobe Illustrator CS5 provides precision and power with sophisticated drawing tools, expressive and realistic brushes, time-saving options and integration with online services Adobe CS Live. 
Detailed features of the Adobe Illustrator CS5.

New features of the environment Illustrator vector graphics are drawing in perspective, bristle brush, the strokes of variable width and forms builder tool.

With the improvement of integration between Adobe products, you can easily switch between Adobe Illustrator CS5 and other products like Adobe Flash® Catalyst CS5 where you can improve interaction designs

The new Perspective Grid tool allows you to activate a grid that can draw directly on planes of true perspective. Use the perspective grid to draw shapes and scenes in accurate perspectives of 1, 2 and 3 points. The new Perspective Selection tool allows you to move, scale, duplicate and transform objects dynamically. With Perspective Selection tool, you can also move objects in perpendicular direction to its current location.

Use the tool to draw lines width variable width can be adjusted smoothly at any point, symmetrically or along one side. You can also create and save custom width profiles and re-apply to any stroke.

Set the scale of art brushes and pattern along a path. Choose areas of the brush stroke so that its size is changed proportionally. For example, it may extend the central portion of a holder and prevent stretch detailed curved ends

The Adobe  Illustrator CS5 installer installs fonts into a default system font directory. Many of these fonts are newer versions of fonts installed by Creative Suite 3/4 or Illustrator CS3/4. If the installer finds older versions of these fonts in the default system font directory, it will uninstall the older versions, and save them to a new directory. Enjoy your Adobe Illustrator CS5.

Download USER GUIDE of Adobe Illustrator CS5