ghostscript

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      Ghostscript is a suite of software based on an interpreter for Adobe Systems' PostScript and Portable Document Format (PDF) page description languages. Its main purposes are the rasterization or rendering of such page description language files, for the display or printing of document pages, and the conversion between PostScript and PDF files.


      Features


      Ghostscript can be used as a raster image processor (RIP) for raster computer printers—for instance, as an input filter of line printer daemon—or as the RIP engine behind PostScript and PDF viewers. It can also be used as a file format converter, such as PostScript to PDF converter. The ps2pdf conversion program comes with the Ghostscript distribution.
      Ghostscript can also serve as the back-end for PDF to raster image (png, tiff, jpeg, etc.) converter; this is often combined with a PostScript printer driver in "virtual printer" PDF creators. As it takes the form of a language interpreter, Ghostscript can also be used as a general purpose programming environment.
      Ghostscript has been ported to many operating systems, including Unix-like systems, classic Mac OS, OpenVMS, Microsoft Windows, Plan 9, MS-DOS, FreeDOS, OS/2, ArcaOS, Atari TOS, RISC OS and AmigaOS.


      History


      Ghostscript was originally written by L. Peter Deutsch for the GNU Project, and released under the GNU General Public License in 1988. At the time of the initial release there was a similar commercial software product named GoScript from LaserGo. Later, Deutsch formed Aladdin Enterprises to dual-license Ghostscript also under a proprietary license with an own development fork: Aladdin Ghostscript under the Aladdin Free Public License (which, despite the name, is not a free software license, as it forbids commercial distribution) and GNU Ghostscript distributed with the GNU General Public License. With version 8.54 in 2006, both development branches were merged again, and dual-licensed releases were still provided.
      Ghostscript is currently owned by Artifex Software and maintained by Artifex Software employees and the worldwide user community. According to Artifex, as of version 9.03, the commercial version of Ghostscript can no longer be freely distributed for commercial purposes without purchasing a license, though the (A)GPL variant allows commercial distribution provided all code using it is released under the (A)GPL.
      In February 2013, with version 9.07, Ghostscript changed its license from GPLv3 to GNU AGPL. which raised license compatibility questions, for example by Debian.
      Starting with release 9.55.0 Ghostscript has two built-in PDF interpreters. Until spring 2022, up to Ghostscript version 9.56.1, the default PDF interpreters implementation itself was coded in PostScript. The new default PDF interpreter has been rewritten in C entirely, and is faster and more secure than its predecessor, while its interface and graphics library have not changed. Scripting the new C written PDF interpreter from PostScript is still possible.


      Free fonts


      There are several sets of free fonts supplied for Ghostscript, intended to be metrically compatible with common fonts attached with the PostScript standard. These include:

      A collection of 35 font styles from 10 typeface families contributed by German foundry URW++ in 1996 under the GPL and AFPL, which is therefore commonly called the URW Base 35 fonts or URW Core 35 fonts. The collection is similar to the 35 fonts defined by Adobe in PostScript Level 2: Bookman L (Bookman), Century Schoolbook L (New Century Schoolbook), Chancery L (Zapf Chancery), Dingbats (Zapf Dingbats), Gothic L (Avant Garde), Nimbus Mono L (Courier), Nimbus Roman No9 L (Times), Nimbus Sans L (Helvetica), Palladio L (Palatino), Standard Symbols L (Symbol), in Type1, TrueType, and OpenType formats.
      The GhostPDL package (including Ghostscript as well as companion implementations of HP PCL and Microsoft XPS) includes additional fonts under the AFPL which bars commercial use. It includes URW++ versions of Garamond (Garamond No. 8), Optima (URW Classico), Arial (A030), Antique Olive, and Univers (U001), Clarendon, Coronet, Letter Gothic, as well as URW Mauritius and a modified form of Albertus known as A028. Combined with the base set, they represent a little more than half of the standard PostScript 3 font complement.
      A miscellaneous set including Cyrillic, kana, and fonts derived from the free Hershey fonts, with improvements by Thomas Wolff (such as adding accented characters).
      The Ghostscript fonts were developed in the PostScript Type 1 format but have been converted into the TrueType format. As a result, a user can install and use the Ghostscript fonts via most modern software. Furthermore, the Ghostscript fonts are used as parts of various open source applications, e.g., the Linux version of GIMP depends on Graphviz which in turn depends on the Ghostscript fonts. Finally, multiple open source font projects used glyphs from the Ghostscript fonts, e.g., the Latin characters of GNU FreeFont are based on Nimbus Mono L, Nimbus Roman No9 L, and Nimbus Sans L. The TeX Gyre fonts are also based on 8 out of the 10 original Ghostscript typeface families. The Garamond font has additionally been improved upon.


      See also



      Common Unix Printing System
      Foomatic
      PostScript Printer Description
      Printer driver
      pstoedit


      References




      External links


      Official website
      Ghostscript version 8.56 and earlier
      Ghostscript/GhostPDL binaries download page at GitHub (cross-platform, this site is actively maintained)
      GPL Ghostscript binaries download page at SourceForge (cross-platform, this site is no longer actively maintained)

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    Ghostscript fonts download | SourceForge.net

    Mar 26, 2013 · Download Ghostscript fonts for free. Fonts and font metrics customarily distributed with Ghostscript. Currently includes the 35 standard PostScript fonts and a grab-bag of others.

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    PDFCreator - Browse /PDFCreator/PDFCreator 0.9 at …

    Jan 19, 2006 · This setup only includes a standard install with AFPL Ghostscript and is only available in english. This setup doesn't support 64bit machines. PDFCreator …