SK1 (program)

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Template:Short description Template:Lowercase Script error: No such module "Infobox".Template:Template other Script error: No such module "Check for unknown parameters".Script error: No such module "Check for conflicting parameters". Script error: No such module "Infobox".Template:Template other Script error: No such module "Check for unknown parameters".Script error: No such module "Check for conflicting parameters". sK1 is an open-source, cross-platform illustration program that seeks to be a substitute for professional proprietary software like CorelDRAW or Adobe Illustrator. Unique project features are CorelDRAW formats importers, tabbed multiple document interface, Cairo-based engine, and color management.

History

A small team led by Igor Novikov started the project in 2003, based on the existing open source vector graphics editor Skencil. sK1 is a fork of the Skencil 0.6.x series which used Tk widgets for the user interface (this version had been dropped by the main Skencil developers who were working on a branch of the program based on GTK+).

In 2007 the sK1 team reverse-engineered the CorelDRAW (CDR) format.[1] The results and the first working snapshot of the CDR importer were presented at the Libre Graphics Meeting 2007 conference taking place in May 2007 in Montreal (Canada).[2] Later on the team parsed the structure of other Corel formats with the help of CDR Explorer.[3] Export into CDR and CMX file formats was presented at the Libre Graphics Meeting 2019 conference taking place in May 2019 in Saarbrücken (Germany).

Target audience

Since the project was started by a small team of Ukrainian professionals in prepress, it was unambiguously focused on full support for PostScript, PDF, CMYK color model and color management at the expense of developing some advanced functions for illustratorsScript error: No such module "Unsubst".. Informally the project is positioned as a free open source alternative to the commercial CorelDRAWScript error: No such module "Unsubst"..

Functionality

Compared to Inkscape, sK1 has a limited feature set, adequate for simple sketching, while its user interface remains clean. Drawable objects include circles and ellipses, rectangles, text, Bézier curves, and straight lines. Those can be transformed in typical manners and aligned in multiple ways.[4]

Supported formats

Import
  • CorelDRAW v7-X4 (CDR/CDT/CCX/CDRX/CMX)
  • Adobe Illustrator up to version 9 (based on PostScript)
  • Postscript (PS) and Encapsulated Postscript (EPS)
  • Computer Graphics Metafile (CGM)
  • Windows Metafile (WMF)
  • XFIG
  • Scalable Vector Graphics (SVG)
  • Skencil/Sketch/sK1 (SK, SK1, SK2)
  • Acorn Draw (AFF)
  • PLT - HPGL cutting plotter files
  • CorelDRAW palettes (CPL and XML)
  • Adobe Swatch Exchange palettes (ASE)
  • Adobe Photoshop palettes (ACO)
  • Xara Designer palettes (JCW)
  • GIMP/Inkscape palettes (GPL)
  • LibreOffice palettes (SOC)
  • Scribus palettes (XML)
  • sK1 palettes (SKP)
  • Adobe Photoshop files (PSD)
  • GIMP files (XCF)
  • Images BMP, PNG, JPG, JPEG2000, TIFF, GIF, PCX, PPM, WEBP, XBM, XPM
Export
  • AI - Adobe Illustrator 5.0 (based on PostScript)
  • PDF - Portable Document Format
  • PS - PostScript
  • SVG - Scalable Vector Graphics
  • SK/SK1/SK2 - Skencil/Sketch/sK1
  • CGM - Computer Graphics Metafile
  • WMF - Windows Metafile
  • PLT - HPGL cutting plotter files
  • CorelDRAW palettes (CPL and XML)
  • Adobe Swatch Exchange palettes (ASE)
  • Adobe Photoshop palettes (ACO)
  • Xara Designer palettes (JCW)
  • GIMP/Inkscape palettes (GPL)
  • LibreOffice palettes (SOC)
  • Scribus palettes (XML)
  • sK1 palettes (SKP)
  • PNG - Portable Network Graphics

Side projects

File:Skencil 1.0.0 alpha.png
Skencil 1.0 alpha on Ubuntu 10.04
Skencil (revitalization)

Template:Main article

On 19 November 2006, On 19 November 2006, Bernhard Reiter and Bernhard Herzog asked Ihor Novikov to join Skencil development, stalled since 2005.[5][6]

On 31 October 2010, Skencil 1.0 alpha was released, as a result of revitalization work done by Ihor Novikov.[7][8][9]

On 4 November 2016, Skencil 1.0 rc1 was released, and the last code changes committed on 7 February 2020.[10]

UniConvertor
an application for conversion of files from one vector format into another one. In fact it is a part of sK1, rewritten as a standalone code and being developed by the same team. UniConvertor is also used by Inkscape for opening CorelDRAW, WMF and Sketch/Skencil files.[11][12][13]
Color Palette Collection
a set of free palettes provided in different native file formats for sK1, Inkscape, GIMP, Scribus, LibreOffice, CorelDRAW, Adobe Illustrator, Xara Designer etc. For sK1 2.0 the palette collection is available as a web service.[14]
CDR Explorer
a program that simplifies the reverse-engineering of CorelDRAW formats.
LinCutter
an application for interactive work with cutting machines (PLT format).[15]

Awards

  • In 2007 the project was awarded the second place in the Trophées du Libre open source project contest in the "Multimedia and games" category.[16]
  • In 2008 the project was awarded the third place in the contest Hackontest, organized by the Swiss Open Systems User Groupd /ch/open and sponsored by Google.Script error: No such module "Unsubst".
  • In 2009 the project was awarded the second place in the contest "The best free project of Russia", conducted by Linux Format magazine. Among the group projects.[17]
  • In 2009 the UniConvertor project was awarded the first place in the Trophées du Libre open source project contest in the "Multimedia" category.Script error: No such module "Unsubst".

sK1 versions

Version Date OS Description
Template:Version 9 May 2009 Linux First public release
Template:Version 10 November 2010 Linux Release "Made in Brazil"
Template:Version 5 December 2014 Linux Backport release with branch 2.0 changes
Template:Version 19 February 2015 Linux Bugfix release
Template:Version 6 May 2016 Linux, Windows First public release for branch 2.0 based on wxWidgets
Template:Version 20 October 2016 Linux, Windows Completed vector graphics editor, but there is not import/export functionality
Template:Version 13 April 2018 Linux, Windows Bitmap graphics import (more than 100 file formats), import filters for GPL, SOC, JCW, CPL, ASE, XML palettes, SVG, PDF, WMF.
Template:Version 27 May 2019 Linux, Windows Import filters for CGM, FIG, CDR(CDRX), CMX, CCX, SVGZ. Export functionality for CGM, CMX, CDR.
Template:Version --- Linux, Windows Under active development.
Template:Version --- Linux, Windows Future final release
Template:Version

UniConvertor versions

Version Date OS Description
Template:Version 15 November 2007 Linux First public release
Template:Version 21 December 2007 Linux, Windows, MacOS X Win32 and MacOS X support
Template:Version 1 February 2008 Linux, Windows CorelDRAW X4 file format support
Template:Version 24 March 2008 Linux, Windows Bugfix release
Template:Version 25 July 2008 Linux, Windows PDF and PostScript support
Template:Version 5 June 2009 Linux, Windows PLT import/export
Template:Version 26 June 2010 Linux, Windows DXF, DST, PES, EXP, PCS import. MSI installer. GUI frontend.
Template:Version 25 February 2014 Linux, Windows Bugfix release
Template:Version 27 May 2019 Linux, Windows First public release for branch 2.0; export for CDR and CMX, import/export for GPL, SOC, ASE, CPL, JCW, ACO, SKP
Template:Version --- Linux, Windows, macOS Under active development
Template:Version --- Linux, Windows, macOS Future final release
Template:Version

See also

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References

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External links

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Template:Vector graphics editors

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