A First Guide to PostScript - A tutorial of the basics of the PostScript page description language. Includes examples
Adobe PostScript - The official site of PostScript has, among others, the PostScript Language Reference. (Adobe)
All about PostScript - Discussion about postscript error handling and general Postscript links.
Apago - Develops software solutions for graphic arts and prepress markets, conversion tools for PostScript, PDF and raster workflows, custom applications for prepress, document management (COLD), large format and variable printing markets. Image compression including fractal, wavlet and JPEG 2000. Plug-ins for Acrobat, Quark and Photoshop.
ASN Developer Program - Adobe's developer support program.
comp.lang.postscript FAQs - Usenet answers for postscript questions.
Don Lancaster's PostScript Library - Essays and examples on Postscript programming.
Dylan's PostScript Page - A few handcrafted PostScript programs illustrating the data format's structure and basic features.
EnFocus Software Home Page - PDF error checking program.
EPS in Ten Easy Stages - Brief introduction to Encapsulated PostScript.
Examples from the Blue book - Excerpts covering basic graphics, printing text, applications, and modifying and creating fonts.
GhostScript - An interpreter for the PostScript language.
Ghostscript, Ghostview and GSview - Free for non-commercial use programs to render Postscript documents and links to related utilities.
GSview - A graphical interface for Ghostscript, to display postscript documents on several platforms.
GV - Front end for ghostscript to display PostScript and PDF documents.
Hello, World in Postscript - Sample Postscript program.
Internet PostScript Resources - Internet PostScript Resources
Le GNU a2ps - Filter to convert many file types to PostScript.
Luc Devroye's PostScript Page - Resources on Postscript.
PostScript and GhostScript Resources - Links to general information, utilities, and software.
PostScript Books - Lists a couple of Adobe and third-party publications.
PostScript Interpreter (RIP) and OEM SDK - Rapport is a PostScript technology developer based in the UK and the creator of InkWell - A high performance PostScript compatible interpreter and Software Development Kit for OEMs. Add PostScript capability to any system: printers, servers, controllers and applications.
PostScript Introduction - An overview of the PostScript page description language, where it came from, and the problem that it solves.
PostScript Language Reference - Complete list of PostScript operators, operands, and symbols. Also features a PostScript troubleshooting section, information on document structuring conventions, the OpenPress Interface (OPI) specification, and a list of books.
PostScript Manual - David Maxwell's introduction to programming in Postscript.
PostScript Processing Speed Test - Benchmark for Postscript printers.
PostScript Quick Tips - Short programming examples.
PostScript Technical Notes - Official specification of the core data format/language and of several of its extensions, specification errata and supplements. Hosted by the Adobe Solutions Network.
Prepress Panic - Handling problems with postscript documents submitted to typesetting services.
Pstoedit - Program to translate PostScript and PDF files into other vector graphics formats.
PStoText - Helper program for ghostscript to extract plain text from Postscript and PDF documents.
PSUtils - Utilities for manipulating the way Postscript documents are printed.
Richard's PS Junk Page - PostScript news, downloads, documentation.
Square One - Postscript to vector and bitmap conversion utilities.
Thinking In PostScript - Glenn Reid's book, generously made available in PDF format.
Thomas Merz Home Page - Most stuff on my pages is available in English and German.
YARC Systems - Licencing Postscript software to OEMs and producing end-user products since the 1980s, primarily for the Publishing and Macintosh marketplaces, but most recently offering Linux based server technology.