SK to RTF Converter

Free SK to RTF conversion — rich text document output

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Universal Document

RTF is supported by every word processor. Convert SK to RTF for maximum compatibility when sharing documents.

Cross-Platform Exchange

RTF works on Windows, Mac, and Linux equally well. Your SK artwork reaches recipients regardless of their software.

Secure Conversion

SK uploads are removed after conversion. RTF output files are deleted from Convertio servers within 24 hours.

How to convert SK to RTF

1

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

2

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

3

Let the file convert and you can download your rtf 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
RTF (Rich Text Format) is a document interchange format developed by Microsoft and first published in 1987 with Word 3.0. The format encodes document content and formatting as plain ASCII text using control words (backslash-prefixed commands) and groups (curly-brace-delimited sections) that describe fonts, character formatting, paragraph layout, tables, images, and page setup. Because RTF is fundamentally a text format with no binary components, documents pass cleanly through any text channel — email systems, clipboard operations, and cross-platform transfers — without corruption. Microsoft designed RTF explicitly as a cross-application and cross-platform exchange format, and it achieved broad adoption: virtually every word processor, text editor, and document tool on every operating system has supported RTF reading and writing for decades. One advantage is exceptional cross-platform compatibility — an RTF document created on any application renders with consistent formatting on any other, making it the most reliable format for text exchange between incompatible systems. The text-based structure provides another benefit: RTF files resist corruption, are trivially generated by programs (requiring only string concatenation), and can be debugged by reading the raw markup in a text editor. While RTF lacks modern features like tracked changes and advanced layout controls, and Microsoft declared the specification frozen at version 1.9.1 in 2008, the format persists as a dependable interchange option where DOCX compatibility cannot be assumed.
Developer: Microsoft
Initial release: 1987

Frequently Asked Questions

Why convert SK to RTF?

RTF is universally supported across word processors. Converting SK to RTF embeds your Skencil artwork in a document any office app can open.

What programs open RTF files?

Microsoft Word, WordPad, LibreOffice, Google Docs, TextEdit (Mac), and virtually every word processor supports RTF.

Is RTF cross-platform?

Yes — RTF was designed for document exchange between different applications and operating systems. It works everywhere.

Does RTF preserve formatting?

RTF supports rich formatting including embedded images, fonts, and styles. Your SK artwork is embedded as an image in the document.

Is this free?

Convertio provides free SK to RTF conversion. Premium plans offer expanded file limits and priority processing.