Saving PostScript-compatible files as binary and ASCII

When saving a document as a PostScript-compatible file, you have the option of encoding the file as binary (default) or ASCII data. Save the file as a binary file to reduce the quantity of data. Use ASCII if you plan to later edit the document.

To encode a PostScript-compatible file, first select Print to File in the Print dialog box. Then choose the General menu of the Options dialog box and select the Encoding option.

Using precision bitmaps

To improve the quality of bitmap images, turn on the Precision Bitmap option. This option is accessible from the Visual Effects menu in the Options dialog box and slightly modifies bitmaps for printing to a PostScript or PostScript-compatible printer.

Images are displayed on a Macintosh at 72 dpi; however, most PostScript and PostScript-compatible printers print images in multiples of 75 dpi. When 72-dpi screen data is converted to print data, some image quality can be lost. If you select Precision Bitmaps, the screen data is first converted to a multiple of 75 and then printed, preserving the quality of the image, though reducing the image size by approximately 4%.

Using the MicroGray feature

The Dot Screen option of the Options dialog box allows you to change the grayscale technology used by the printer to create images. The options are Printer’s Default, Standard, and Multigray/Microgray.

Normally you should use MicroGray for the best looking grayscale images. Standard sets the printer’s grayscale handling to be the same as the standard PostScript.

Using EpsonScript in a Macintosh Environment

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