New Release: GNU Ghostscript 8.50-1
James R. Phillips
Thu Feb 16 12:45:00 GMT 2006
The latest upstream release of GNU Ghostscript, version 8.50, has been packaged
for Cygwin. This is the first release in the 8.5x stable series of
Ghostscript. In addition to many bug fixes it contains numerous new features.
Most obvious will be improved font handling and rasterization, and better
support for PDF 1.4 and 1.5 documents.
This program was originally released 2004-12-10 as AFPL Ghostscript 8.50. This
version is the same code released under the GNU GPL license.
GNU Ghostscript home page: http://www.cs.wisc.edu/~ghost/
To update your installation, click on the "Install Cygwin now" link on the
http://cygwin.com/ web page. This downloads setup.exe to your system. Save it
and run setup, answer the questions and pick up 'ghostscript' from the
'Graphics' category. Then click on the 'skip' field next to 'ghostscript' until
'8.50-1' is displayed.
Note that downloads from sources.redhat.com (aka cygwin.com) aren't allowed due
to bandwidth limitations. This means that you will need to find a mirror which
has this update, please choose the one nearest to you:
If you want to make a point or ask a question the Cygwin mailing list is the
Version 8.50 (2005-12-31)
New features since the 8.1x releases:
* Topological grid fitting, an original method developed for Ghostscript by Dr.
Igor V. Melichev, improves the rendering of True Type fonts at small
resolutions. See the documentation for GridFitTT for information on this
* The PDF writer now implements PDF 1.4 encryption. See the encryption
parameter documentation for more information.
* A new rendering method for shadings, developed for Ghostscript by Dr. Igor V.
Melichev, improves the quality and performance of rasterization on continuous
tone devices. The new method allows hardware or software acceleration with help
of customizable routines for filling areas with a linearly varying color
* Better support for running Ghostscript in "Job Server" mode as a daemon to
continually accept and convert a series of independent files.
* Also new is the Rinkj deivce, an experimental new driver for some inkjet
printers using ETS screening and color profiles to achieve very high quality
output for tuned output. See the Rinkj section for more information.
* We now support PDF 1.5 files, including the new compression and encryption
* We have beta support for JPEG 2000 compressed images, using the JasPer
compression library. In this release this support is only enabled as in the
default autoconf (POSIX) and MSVC builds.
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James R. Phillips
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