SK to PCX Converter

Free SK to PCX conversion — legacy bitmap format online

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Legacy Compatibility

PCX works with older software that requires this specific bitmap format. Convert your SK files to PCX for those niche use cases.

Secure Conversion

Uploaded SK files are automatically deleted after processing. PCX outputs are removed from servers within 24 hours.

Any Platform

Access the SK to PCX converter from any device with a web browser — no operating system restrictions.

How to convert SK to PCX

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose pcx or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your pcx file right afterwards

About formats

SK is the native file format of Skencil (originally named Sketch), a free vector graphics editor for Linux created by Bernhard Herzog, with the first public release on October 31, 1998. Skencil holds historical significance as one of the earliest full-featured vector drawing applications written almost entirely in Python, with only performance-critical rendering components implemented in C. The SK file format uses a text-based, Python-like syntax to describe document structure — pages, layers, groups, and individual graphic objects are represented as nested statements with parameters specifying coordinates, colors, line styles, and transformations. The format supports Bezier curves, rectangles, ellipses, text objects with font specifications, imported raster images, gradient and pattern fills, and hierarchical grouping with affine transforms. One advantage is human readability — SK files can be opened in any text editor, making it possible to inspect, modify, or generate artwork programmatically using simple scripts. The Python-native structure also provides a benefit for automation: since Skencil itself is a Python application, the file format integrates naturally with scripting workflows for batch processing and procedural graphic generation. While Skencil's development slowed after the mid-2000s, its SK format became the foundation for the sK1) project, which extended the format and continued active open-source vector graphics development. SK files remain convertible through sK1, UniConvertor, and other open-source tools.
Developer: Bernhard Herzog
Initial release: October 31, 1998
PCX (PiCture eXchange) is a raster image format created by ZSoft Corporation in 1985 as the native format of their PC Paintbrush application, one of the first painting programs for IBM PC compatibles. The format uses a simple run-length encoding (RLE) compression scheme that works by replacing consecutive identical pixel values with a count-value pair, achieving modest compression on images with large areas of uniform color. A PCX file consists of a 128-byte header (specifying dimensions, color depth, palette information, DPI, and encoding method), the RLE-compressed pixel data organized in scan-line order, and an optional 256-color palette appended after the image data. The format evolved through several versions supporting increasing color depths: 1-bit monochrome, 4-bit (16 colors), 8-bit (256 colors), and 24-bit true color using multiple color planes. PCX became one of the most popular image formats during the DOS era, widely supported by paint programs, word processors, desktop publishers, and early games throughout the late 1980s and early 1990s. One advantage was broad DOS-era software compatibility — PCX served as a practical interchange format when competing programs used proprietary raster formats. The simplicity of RLE decoding is another strength, requiring minimal CPU and memory resources ideal for the hardware of that period. While PNG, JPEG, and other modern formats have replaced PCX in contemporary use, the format remains encountered in legacy archives and retro computing contexts.
Developer: ZSoft Corporation
Initial release: 1985

Frequently Asked Questions

Why convert SK to PCX?

PCX is a legacy bitmap format still used in some specialized applications. Converting SK to PCX provides compatibility with those tools.

What software opens PCX files?

IrfanView, XnView, GIMP, and Adobe Photoshop all support PCX. Many older DOS and Windows applications also read PCX natively.

Is PCX compressed?

PCX uses simple RLE compression — lightweight and fast. It offers decent file sizes while maintaining image quality.

Are SK layers preserved?

PCX is a flat raster format. All vector layers from the SK file are composited into a single bitmap image.

Is this free to use?

Yes — free SK to PCX conversion is available at Convertio. Premium plans unlock higher file size limits.