Seeing is believing, so here you have some flash videos about prepress topics.
Videos are shorter and easy as posible, due to limitations on this Hosting.
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Measuring the percentages in a gradient. One technique to know what percentage of ink are in determined part of the gradient GradientPantone.swf
Transforming objects while also doubling is a simple task in illustrator CS2, here a small example. Transforming.swf
The concept of overprint is very important in prepress, look some basics on this Overprint.swf
Combining process with Pantone colors (spot colors, custom colors)
Method 1: Using the option of transparency. Beware, this method generates rasterization, you must make tests to see how it works on final films or plates, this depends greatly on the type of RIP you use. ProcessPantone2.swf
Method 2: Using our friend overprint ProcesPantone1.swf
Traping: A trick that is used in prepress to fix misregistration problems on the printing machines. It's basically to make a color, the more clear mount a little more above the dark color, so you not see a white area in parts where it has not been a good registration.
1. Trap_Auto.swf
2. Trap_Overprint.swf
Checking spelling: How to review spelling in any language within a document in illustrator, even if there are texts in different languages within the same document. Spelling.swf