SCT to SK Converter

Transform SCT data to SK format for free

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Quick Turnaround

Get your SK output within seconds of uploading SCT data. Cloud processing keeps conversions fast even for larger inputs.

Any Device

Convert SCT to SK from a desktop, laptop, tablet, or phone. The browser-based tool adapts to any screen and operating system.

Batch Uploads

Queue multiple SCT inputs and convert them all to SK in one session. Batch processing saves time when you have many files to handle.

How to convert SCT to SK

1

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

2

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

3

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

About formats

SCT (Scitex Continuous Tone) is a high-end raster image format developed by Scitex Corporation for their prepress and color reproduction systems, with the HandShake format specification dating to 1988. Scitex, an Israeli company founded in 1968, was a pioneer in electronic prepress — their systems were used by major publishers, packaging companies, and advertising agencies to perform color separation, retouching, and page composition for high-quality print production. SCT files store images in CMYK color mode at 8 bits per channel (32 bits per pixel), with the color channels arranged in a band-interleaved-by-line format optimized for the scanline-based processing of Scitex's proprietary hardware. The format uses no compression, prioritizing direct access and processing speed over file size on the dedicated workstations where these files were used. SCT images were typically very large — high-resolution drum scans of transparencies and prints at resolutions of 300 dpi or higher for print-ready output. One advantage is print production heritage: SCT files represent some of the highest-quality digital prepress work of their era, scanned and color-corrected by expert operators on hardware that cost hundreds of thousands of dollars, making them valuable primary sources for reprinting and archival of commercial print work from the 1980s and 1990s. Adobe Photoshop has long supported SCT files for import, and the format can also be read by ImageMagick, XnView, and other tools with prepress format support.
Developer: Scitex Corporation
Initial release: 1988
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

Frequently Asked Questions

Why convert SCT to SK?

SCT serves professional prepress needs but is impractical for general use. Converting to SK lets you work with the image in any tool.

What programs open SK files?

SK files can be opened in Skencil (formerly Sketch), sK1, and open-source vector illustration applications.

Does the converter handle batch SCT uploads?

Absolutely. You can upload multiple SCT sources simultaneously and convert all of them to SK in one go — no need to repeat the process.

Does SCT to SK conversion cost anything?

Basic conversions are completely free. If you need higher volume or larger data support, Convertio offers affordable premium options.

Why output to SK format?

SK provides open-source vector, Skencil native, Python-based. Converting SCT data into SK format opens up professional design and print possibilities.

What platforms support this converter?

Convertio runs in any modern web browser — Chrome, Firefox, Safari, Edge — on Windows, macOS, Linux, Android, and iOS devices.