sK1 is a versatile, open-source vector graphics editor that operates across various platforms, comparable to software like CorelDRAW, Adobe Illustrator, and Freehand. One of the standout features of sK1 is its capability to produce professional-grade, prepress-ready PDF outputs with precise printing quality. The software, currently at version 2.0, is distributed under the GPL v3 license, meaning it can be utilized for both personal and commercial projects without incurring any costs. Users can create basic vector graphic shapes, including rectangles, rounded rectangles, ellipses, and more complex forms like Bézier curves and polygons, all of which can be organized within pages, layers, or grouped containers. Additionally, each document can accommodate pages of varying sizes, allowing for greater flexibility in design. Following the conventions of PS/PDF files, sK1 2.0 offers various fill options for graphic primitives, including solid, gradient, and pattern fills, and allows for outlining objects with a solid stroke. The application also supports advanced features such as alpha channels for fills and strokes, enhancing its usability for detailed graphic work. Furthermore, it accommodates multiple color spaces, including RGB, CMYK, Grayscale, and even SPOT colors, making it a comprehensive tool for graphic designers.