PostScript 3 was significant in terms of replacing the existing proprietary color electronic prepress systems, then widely used for magazine production, through the introduction of smooth shading operations with up to 4096 shades of grey ( rather than the 256 available in PostScript Level 2 ), as well as DeviceN, a color space that allowed the addition of additional ink colors ( called spot colors ) into composite color pages.

Those who did not license the technology were left with the Type 3 Font ( also known as PostScript Type 3 Font, PS3 or T3 ).

Type 3 fonts allowed for all the sophistication of the PostScript language, but without the standardized approach to hinting.

Certain new features are common across all editions of Windows 2000, among them NTFS 3. 0, the Microsoft Management Console ( MMC ), UDF support, the Encrypting File System ( EFS ), Logical Disk Manager, Image Color Management 2. 0, support for PostScript 3-based printers, OpenType < tt >(. OTF )</ tt > and Type 1 PostScript < tt >(. PFB )</ tt > font support, the Data protection API ( DPAPI ), an LDAP / Active Directory-enabled Address Book, usability enhancements and multi-language and locale support.

In particular, the Mac version of 3. 3 ( released in 1996 ) was seen as stable and trouble-free, working seamlessly with Adobe's PostScript fonts as well as with Apple's TrueType fonts.

Encapsulated PostScript — File Format Specification, Version 3. 0, Tech Note # 5002, Adobe Systems Incorporated, San Jose, CA, USA, 34 pp. PDF

PostScript level 1 supports tiled patterns and PostScript 3 supports Gouraud shading.

High-level printing is achieved using its own internal level 3 PostScript driver, including support for font embedding and sub-setting with TrueType, Type 1 and OpenType fonts.

The internal driver supports full Level 2 PostScript constructs and a large subset of Level 3 constructs.

Level 3 PostScript adds further transparency option for any raster image.

EPS files contain PostScript, which may be level 1, 2 or 3 and make use of the features above.

Computer Modern was first transformed to a PostScript Type 3 font format by BlueSky, Inc. in 1988, and then to Type 1 in 1992 to include font hinting.

Xprint outputs as PostScript, PCL 3, PCL 5 or as a raster bitmap at printer resolution.

Examples are PostScript Type 1 and Type 3 fonts, TrueType and OpenType.

Type 3 allowed unrestricted use of the PostScript language, but didn't include any hint information, which could lead to visible rendering artifacts on low-resolution devices ( such as computer screens and dot-matrix printers ).

It was still called OpenWindows ( now version 3. 3 ), but the NeWS protocol was replaced by support for Display PostScript.

Adobe Systems ’ division of typography is an innovator in font technology and design, Adobe was a forerunner in the development of PostScript Type 1 and Type 3 font formats and OpenType technology, as well as being an established digital type foundry.

At the time, the technology for including these hints in fonts was carefully guarded, and the hinted fonts were compressed and encrypted into what Adobe called a Type 1 Font ( also known as PostScript Type 1 Font, PS1, T1 or Adobe Type 1 ).

In the 1980s, Adobe drew most of its revenue from the licensing fees for their implementation of PostScript for printers, known as a raster image processor or RIP.

This and issues of cost led to third-party implementations of PostScript becoming common, particularly in low-cost printers ( where the licensing fee was the sticking point ) or in high-end typesetting equipment ( where the quest for speed demanded support for new platforms faster than Adobe could provide ).

Apple ended up reaching an accord with Adobe and licensed genuine PostScript for its printers, but TrueType became the standard outline font technology for both MS Windows and the Macintosh.

* PostScript ( Adobe Systems )

Meanwhile, in exchange for Truetype, Apple got a license for TrueImage, a PostScript-compatible page description language owned by Microsoft that Apple could use in their laser printers. This was never actually included in any Apple products when a later deal was struck between Apple and Adobe, where Adobe promised to put a TrueType interpreter in their PostScript printer boards, Apple renewed its agreements with Adobe for the use of PostScript in its printers ; resulting in lower royalty payments to Adobe who was beginning to license printer controllers capable of competing directly with Apple's LaserWriter printers.

Anti-aliased rendering, combined with Adobe applications ability to zoom in to read small type, further combined with the now open PostScript Type 1 font format, provided the impetus for an explosion in font design, and desktop publishing of newspapers and magazines.

* EG-DocRIP ( printer drivers not available ) can interpret several printer languages or document formats-HP PCL5, XL, Adobe PostScript Level3, Microsoft XPS, W3C XHTML-MP, and render to raster image.

The source material may be encoded in any number of special page description languages such as Adobe PostScript ( PS, BR-Script ), HP Printer Command Language ( PCL ), or Microsoft Open XML Paper Specification ( OpenXPS ) generate a bitmap of the final page in the raster memory.

Meanwhile, John Warnock had left Xerox to found Adobe Systems in order to commercialize PostScript in a laser printer they intended to market.

To compete, many other laser printer manufacturers licensed Adobe PostScript for inclusion into their own models.

* For low-end users, there was the LaserWriter II SC, a host-based QuickDraw printer connected via SCSI that did not use PostScript and did not require a license from Adobe.

Early versions of PostScript display systems were developed at Adobe Systems.

Microsoft's version of Times New Roman licensed from Monotype matches the widths from the Adobe / Linotype version ( a PostScript core font by Linotype ).

Thereafter, Adobe generally preferred a RISC for its processor, as its competitors, with their PostScript clones, had already gone with RISCs, often an AMD 29000-series.

The early 68000-based Adobe PostScript interpreters and their hardware were named for cold war U. S. rockets and missiles: Atlas, Redstone, etc.

PostScript is an interpreted, stack-based language similar to Forth but with strong dynamic typing, data structures inspired by those found in Lisp, scoped memory and, since language level 2, garbage collection.

A Hello World program, the customary way to show a small example of a complete program in a given language, might look like this in PostScript ( level 2 ):

While competing printers and their associated control languages offered some of the capabilities of PostScript, they were limited in their ability to reproduce free-form layouts ( as a desktop publishing application might produce ), use outline fonts, or offer the level of detail and control over the page layout.

It lacked the power and flexibility of PostScript until several upgrades provided some level of parity.

The PostScript language has limited support for full ( not partial ) transparency, depending on the PostScript level.

This ensures a basic level of predictability in the PostScript code, thus forming the basis of document manageability.

Several programming languages fit this description, notably Forth, RPL, PostScript, BibTeX style design language and also many Assembly languages ( but on a much lower level ).

The PostScript printer description languages supports registration black, starting with PostScript language level 2.