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*************************      PostScript      ************************* 
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directory was made by ALENA LACOVA (alena@ced.tudelft.nl)
to help users learn the PostScript language. It is aslo designed to help 
complete beginners and those with limited knowledge of a PostScript who 
need PostScript for printing text or graphics by PostScript printers. 

Please let me know of any bugs and problems experienced or fixes that 
you can recomend.

Before you try to send a program to a PostScript printer ( on BSD UNIX ) 
with the command:

	lpr -Pprinter filename.ps

please try using the command ghostscript on any graphical terminal
running X-windows:

	gs filename.ps


***************** P O S S I B L E    P R O B L E M S *******************

!! BE CAREFULL. Not all examples work with "lpr -Pprinter *.ps" command,
The ones which manipulate files (like CopyFile_14.4.ps) work only with 
commands like "gs filename.ps" (ghostscript, command for displaying
PostScript programs on X_window terminals). 
	Some of the examples produce empty or no page at all, but you can 
find all you need in log file belonging to the particular printer in
/usr/spool directory.

You can also find ERROR MESSAGES in that files in case there is no output
from printer. If you don't understand what is behind the message, try to
look for both an operator after "OffendingCommand:" and the error after 
"Error:" in Adobe's "PostScript Reference Manual" (red book), Chapter
"Operators Details".

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This directory consists of several files and directories with examples
of PostScript programs. 

Files:
=====

FAQ_comp.lang.postscript	-- Frequently Asked Questions in news group
				   comp.lang.postscript 

Directories:
===========

blue_book
---------
consists of the examples from Adobe's 
"PostScript Language Tutorial and Cookbook" (blue book).

fonts
-----
in this directory you can find examples of how to use available fonts,
how to change size, color or pattern for filling letters, how to modify
and create fonts.

graphics
--------
you can find here many useful examples for beginners and advanced PostScript
programmers or hints you may need while writing your own program for graphics.
You can also find pictures made for testing colors or shadows of grey of
the PostScript printers, or just for fun.

green_book
----------
consists of the examples from Adobe's 
"PostScript Language Program Design" (green book).

images
------
consists of simple and more complicated examples of images
how to use image, currentfile, settransfer, currenttransfer
and other PostScritp operators

testing_printers
----------------
consists of programs for testing quality (speed, available fonts,
virtual memory status, languagelevel, margins, etc.) of black&white 
and color printers

text
----
In this directory you can find some examples for printing text.
You should also look in directory blue_book and green_book where
you can find more examples.

thinking_in_PS
--------------
consists of the examples from Glenn C. Reid's book
"Thinking in PostScript". 
You can find many useful new defined operators and hints for work 
with text, manipulating data and files. 

visitcards_logos
----------------
has some examples of visiting cards and logos
.