A thing that new users do is attempt to modify elements in their drawing without clicking on the Selection tool first. One example might be they draw a shape using, say, the Polygon tool and then, with the Polygon tool still active, they attempt to move or resize the polygon they have just drawn or click on the page to deselect the polygon. They then get annoyed and puzzled when tiny polygons keep appearing in their drawing or Illustrator’s shape dimension window keeps on popping up. see page
The best way of avoiding these types of mistakes is to keep an eye on the various signals that Illustrator provides, particularly those relating the appearance of the cursor. Thus, for example, if you are trying to resize a rectangle, you can only do so when the cursor changes to a diagonal line with an arrow at both ends (indicating that your cursor is in the correct position).
If you a new user to a program like Illustrator, it is inevitable that you will make errors: things may go slightly wrong or even get completely messed up. The key thing here is to learn the Undo habit. For example, if you accidentally move an object don’t try to manually put it back where it was, simply choose Edit – Undo or use the shortcut Control-Z (Command-Z on a Mac). If you Undo too far back, you can use the Redo command to come forward again. (The shortcut for Redo is Control-Shift-Z.)
If your effort to create a drawing has gone completely wrong, the best thing to do is to accept defeat and choose the Revert command from the File menu. This is a way of admitting “This just isn’t working. I submit!” The Revert command abandons all of the modifications you have made to the document since it was last saved and can be another useful way of avoiding user headaches.
As wonderful a tool as Illustrator is, the entire Creative Suite of products shows that it’s just one in an entire, complete tool kit. We’re going to go through broad integration between Adobe Illustrator, and its suite mates in the Design Package – InDesign, Photoshop, Flash, Dreamweaver and Acrobat.
Each of these programs was developed independently to handle specific job tasks that a print and multimedia design house might encounter. Two of the applications (Dreamweaver and Flash) were acquired by Adobe when it acquired Macromedia Software in 2005. Each does something a bit different; Illustrator is good for line drawings on a canvas of arbitrary size, Photoshop is good for photo manipulation and ‘pixel painting’, Flash and Dreamweaver are used to make interactive animations and web sites, and InDesign is designed to assemble and lay out books, while Acrobat performs a similar function for smaller, multi-page PDFs.