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14. On-screen previewing of printable things.

Nearly anything you can print can be viewed on the screen, too.

14.1 PostScript

Ghostscript has an X11 driver best used under the management of the PostScript previewer Ghostview. The latest versions of these programs should be able to view PDF files, as well.

14.2 TeX dvi

TeX DeVice Independant files may be previewed under X11 with xdvi. Modern versions of xdvi call ghostscript to render PostScript specials.

A VT100 driver exists as well. It's called dgvt. Tmview works with Linux and svgalib, if that's all you can do.

14.3 Adobe PDF

Adobe's Acrobat Reader is available for Linux; just download it form their web site

You can also use xpdf, which is freeware and comes with source, and I should think Ghostview supports viewing PDF files with gs under X11 by now.

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