sK1 is an open source vector graphics editor similar to CorelDRAW, Adobe Illustrator, or Freehand. First of all sK1 is oriented for PostScript processing.
The major sK1 features:
CMYK colorspace support
CMYK support in Postscript
Universal CDR importer (7-X3 versions)
Modern Ttk based (former Tile widgets) user interface.