Saving file formats

Illustrator Draftsman 3 & 2 - Volume 3 Executionable Practices
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File Formats, Continued Saving file formats American Standard Code for Information Interchange (ASCII) Encapsulated postscript file formats (EPS or EPSF) Tag Image File Format (TIF or TIFF) Raster image file format (RIF or RIFF) The format graphics are saved in affects the resolution quality of the final product. Files saved in low-resolution do not produce professional quality graphics. Files saved in high-resolution file formats require software program compatibility to maintain high resolution or increase to very high resolution. Common file formats are the American Standard Code for Information Interchange (ASCII), the encapsulated postscript file format (EPS or EPSF), the tag image file format (TIFF), the raster image file format (RIFF), and the graphic images format (GIF). There are some file formats that are platform specific such as Amiga ILF/ILBN and Macpaint. The American Standard Code for Information Interchange (ASCII) is a generic text-only format without special coding for attributes such as bolding, underline, and italicizing. You can open files saved in ASCII in any other program so long as you specify the format when opening the file or issue a special import command. ASCII does not handle graphics files. Encapsulated postscript file formats (EPS or EPSF) save graphics as high resolution images in color or black and white. EPS files consume more disk space than other file formats because they contain information required for color separation. Images saved as EPS files are particularly suited to high quality reproduction or commercial printing. EPS or EPSF is a vector-based format. Tag image file formats or TIFF is a common format for saving bit-mapped graphics. You can save any scanned line art or grey-scale halftone image in TIFF and import/export into desktop publishing programs or other graphics software for further manipulation. The TIFF file format is a vector-based format. TIFF is less capable as a format for color images than EPS. Raster image file formats (RIFF) is a PC image-editing program similar to TIFF in very high resolution. Vector-based formats may be converted to RIFF by a RIP. Continued on next page 8-35

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