Adobe 16001500 Migration Guide - Page 32

Exporting If you need to use your file in workflows that do not support native Illustrator file formats, you can export the artwork into many alternate file types, including AutoCAD Drawing (.dwg), Macromedia Flash (.swf), or TIFF. These formats are called nonnative formats because Illustrator doesn't include all of the data necessary to reopen the file in Illustrator. For this reason, it is recommended that you save artwork in AI format until you are finished creating it, and then export the artwork to the desired format. About PDF/X PDF/X is a standard used for professional printing workflows. The benefit of using PDF/X is that the produced PDF will not contain unnecessary information and will not include elements that may cause problems during output (such as RGB images). Choose an Adobe PDF standard from the Standards menu at the top of the Save Adobe PDF dialog box. Currently, the most widely used standards for a print publishing workflow are available in two different types of PDF/X formats, PDF/X-1a and PDF/X-3. For more information on PDF/X, see the Adobe website (www.adobe.com/studio/print/ psp.html). PDF/X-1a PDF/X-1a is an ISO standard for graphic content exchange. PDF/X-1a requires all fonts to be embedded, the appropriate PDF bounding boxes to be specified, and color to appear as CMYK, spot colors, or both. PDF/X-compliant files must contain information describing the printing condition for which they are prepared. You can open PDF files created with PDF/X-1a compliance in Acrobat 4.0 and later and Acrobat Reader 4.0 and later. PDF/X-3 PDF/X-3 is another ISO standard for graphic content exchange. The main difference between it and PDF/X-1a is that PDF/X-3 allows the use of color management and device-independent color (CIE L*a*b, ICC-based color spaces, CalRGB, and CalGray) in addition to CMYK and spot colors. PDF/X-3 allows you to use ICC color profiles to specify color data later in the workflow at the output device. You can open PDF files created with PDF/X-3 compliance in Acrobat 4.0 and later and Acrobat Reader 4.0 and later. When saving Illustrator files as PDF, you can also choose from several PDF/X standards. Saving and Exporting Files 31