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SUN to RTF Converter

Get RTF documents from your SUN images free

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Fast Results

SUN to RTF conversion typically completes in seconds. Upload, convert, and download — the full workflow takes under a minute for most inputs.

Any Device

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

Batch Uploads

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

How to convert SUN 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

SUN is a raster image format associated with Sun Microsystems workstations, encompassing both the Sun Raster format (.ras) and the Sun Icon format used for window system icons and cursors on SunOS and Solaris systems. Sun Raster files, identifiable by their 0x59a66a95 magic number, store bitmap images in 1-bit monochrome, 8-bit indexed color, 24-bit BGR, or 32-bit XBGR modes, with optional run-length encoding compression and a 32-byte header. The Sun Icon subset is a simpler text-based format used for small monochrome bitmaps — window icons, cursor images, and toolbar graphics — stored as C-language data arrays that could be directly compiled into X Window and SunView applications. These icon files begin with a comment block specifying width, height, and optionally hot spot coordinates (for cursor images), followed by hexadecimal pixel values in a format readable by both the C compiler and the iconedit tool. Sun workstations running SunOS and later Solaris were foundational platforms for Unix computing, networking, and the early internet, and the SUN image formats were integral to their graphical environments. One advantage is the format's dual text/binary nature: Sun Icons are valid C source code that can be #included directly into applications, a practical approach to resource embedding that predates modern asset management systems. The Sun Raster variant's simplicity provides another strength — the 32-byte header and straightforward encoding make it one of the easiest binary image formats to parse. SUN format files are supported by ImageMagick, GIMP, XnView, and Unix image viewing tools.
Developer: Sun Microsystems
Initial release: 1982
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 SUN to RTF?

SUN was built for Sun Microsystems hardware that is long discontinued. RTF offers the broad compatibility modern workflows demand.

What programs open RTF files?

RTF files can be opened in WordPad, Microsoft Word, LibreOffice, TextEdit, Google Docs, and most text editors.

Can I convert SUN to RTF on my phone?

Yes — the converter works in mobile browsers on both Android and iOS. No app installation needed, just open the page and upload.

Will my image quality survive the conversion?

Your original SUN pixel data is converted accurately to RTF. The output quality matches what the RTF format supports — no unnecessary degradation.

Is the conversion process fast?

Yes — SUN to RTF conversion on Convertio usually completes in seconds. Cloud-based processing handles the work without taxing your device.