- Update from 9.54 to 9.55.0
- Update rootfile
- Changelog
Version 9.55.0 (2021-09-27)
Highlights in this release include:
This release includes the fix for the %pipe% security issue (CVE-2021-3781).
New PDF Interpreter: This is an entirely new implementation written in C (rather
than PostScript, as before). For a full discussion of this change and reasons for
it see: Changes Coming to the PDF Interpreter.
In this (9.55.0) release, the new PDF interpreter is disabled by default in
Ghostscript, but can be used by specifying -dNEWPDF. We hope to make it the
default in 9.56.0, and fully deprecate the PostScript implementation shortly
after that (depending on the feedback we get).
This also allows us to offer a new executable (gpdf, or gpdfwin??.exe on Windows)
which is purely for PDF input. For this release, those new binaries are not
included in the "install" make targets, nor in the Windows installers (they will
be from 9.56.0 onwards).
We would ask that as many users as possible take the opportunity to test with the
new PDF implementation (i.e. using -dNEWPDF on your gs command line), and discuss
any problems with us, before the new implementation becomes the default.
The pdfwrite device now supports "passthrough" for JPX/JPG2000 data images (as
well as the already supported JPEG/DCT Encoded). That means that if no rescaling
or color conversion of the image data is required, the encoded/compressed image
data from the input file will be written unchanged to the output, preventing
potential image degradation caused by decompressing and recompressing.
The Ghostscript/GhostPDL demo apps for C, C#, Java and Python have all had
improvements and the C#/Java/Python language bindings have now been documented,
see Ghostscript Language Bindings
The Zugferd compliant PDF generating definitions (lib/zugferd.ps) have been
updated and expanded to support the current version (2.1.1) of the Zugferd spec,
and optionally different versions of the specification.
The PCL/m output devices now support Duplex/Tumble.
The internal support for "n-up" style simple imposition (introduced in 9.54.0) has
been extended and improved for better support across all input formats.
Ghostscript now supports object specific halftone - for example, different
halftones can be specified for text and images, reflecting the differing needs of
rendering those two types of object.
Our efforts in code hygiene and maintainability continue.
The usual round of bug fixes, compatibility changes, and incremental improvements.
(9.53.0) We have added the capability to build with the Tesseract OCR engine. In
such a build, new devices are available (pdfocr8/pdfocr24/pdfocr32) which render
the output file to an image, OCR that image, and output the image "wrapped" up as
a PDF file, with the OCR generated text information included as "invisible" text
(in PDF terms, text rendering mode 3).
Mainly due to time constraints, we only support including Tesseract from source
included in our release packages, and not linking to Tesseract/Leptonica shared
libraries. Whether we add this capability will be largely dependent on community
demand for the feature.
See Enabling OCR for more details.
For a list of open issues, or to report problems, please visit bugs.ghostscript.com.
Incompatible changes
(9.55.0) Changes to the device API. This will affect developers and maintainers of
Ghostscript devices. Firstly, and most importantly, the way device-specific
"procs" are specified has been rewritten to make it (we think!) clearer and less
confusing. See The Interface between Ghostscript and Device Drivers and The Great
Device Rework Of 2021 for more details.
(9.55.0) The command line options -sGraphicsICCProfile=___, -dGraphicsIntent=#,
-dGraphicsBlackPt=#, -dGraphicsKPreserve=# have been changed to
-sVectorICCProfile=___, -dVectorIntent=#, -dVectorBlackPt=#,
-dVectorKPreserve=#.
From 9.55.0 onwards, in recognition of how unwieldy very large HTML files can become
(History9.html had reached 8.1Mb!), we intend to only include the summary
highlights (above).
For anyone wanting the full details of the changes in a release, we ask them to look
at the history in our public git repository: ghostpdl-9.55.0 log.
If this change does not draw negative feedback, History?.htm file(s) will be removed
from the release archives.
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
- Update from 9.53.3 to 9.54.0
- Update rootfile
- delete patch related to FT_CALLBACK_DEF as fix has been implemented in the source
tarball
- Changelog highlights
Version 9.54.0 (2021-03-30)
The 9.54.0 release is a maintenance release, and also adds new functionality.
Highlights in this release include:
Overprint simulation is now available to all output devices, allowing quality previewing/proofing of PostScript and PDF jobs that rely on overprint. See the -dOverprint option documentation in: Overprint
The "docxwrite" device adds the ability to output to Microsoft Word "docx" format. See: docxwrite
The pdfwrite device is now capable of using the Tesseract OCR engine when it is built into Ghostscript to improve searchability and copy and paste functionality when the input lacks the metadata for that purpose. See: UseOCR
Ghostscript/GhostPDL now includes a "map text to black" function, where text drawn by an input job (except when drawn using a Type 3 font) can be forced to draw in solid black. See: BlackText
Ghostscript/GhostPDL now supports simple N-up imposition "internally". See: NupControl
Our efforts in code hygiene and maintainability continue.
The usual round of bug fixes, compatibility changes, and incremental improvements.
Full details of above highlights can be found at https://www.ghostscript.com/doc/9.54.0/History9.htm
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
Neue Pakete gemacht.
Ein Default-install.sh/uninstall.sh/upgrade.sh-Set erstellt damit da nicht so viele gleiche (leere) Dateien
rumliegen.
git-svn-id: http://svn.ipfire.org/svn/ipfire/trunk@741 ea5c0bd1-69bd-2848-81d8-4f18e57aeed8
