RICH Text Format to FAX conversion is the process of transforming a document saved in RTF (Rich Text Format) into a fax-compatible image-based document (typically a TIFF Group 3/4 or other monochrome fax format) so it can be sent over traditional fax lines or through online fax services. The conversion renders text, formatting, embedded images, and layout from the RTF into the rasterized, phone-line-friendly format that fax systems expect.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
Choosing between image file formats affects quality, speed, compatibility, privacy, and long-term storage. This guide explains JPG vs PNG vs WebP, when newer formats like AVIF and HEIC make sense, and how to pick the best image format for photos, screenshots, logos, ecommerce images, print files, archives, transparency, animation, and everyday conversion workflows.
Read guide →Product photos are rarely ready for every marketplace the moment they leave a camera or design tool. Shopify, Etsy, Amazon, eBay, and WooCommerce each have different expectations for file type, dimensions, background, compression, and zoom quality. This guide explains how to convert product images cleanly, choose the right ecommerce formats, preserve detail, and prepare reliable batches for faster listings.
Read guide →WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Drag your .RTF file from your computer or use the browse function.
Confirm .fax as the selected destination format.
Click "Convert" and download your converted .FAX file once ready.
RTF files use the MIME type application/rtf and are commonly used for document exchange across different word processors. FAX files follow the image/tiff-fx MIME type or similar, tailored for fax transmission and often compressed using codecs like Modified Huffman or Modified READ. These technical differences ensure RTF is suited for document creation while FAX is optimized for telecommunication.
The FAX (.FAX) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like RICH Text Format.
While specific technical details aren't available here, FAX files generally serve the purpose of storing image effectively within their domain.
Converting RICH Text Format files to FAX format is essential for seamless document transmission over fax machines or fax services. Our online RTF to FAX converter offers a straightforward solution to turn your RTF documents into fax-ready files, ensuring compatibility and professional delivery without the need for specialized software.
RICH Text Format is a versatile document format that supports rich text elements such as fonts, colors, and images, primarily used for editing and viewing documents on computers. FAX format is designed specifically for transmission over telephone lines and is optimized for compatibility with fax machines, focusing on image quality and readability rather than rich formatting.
Keep individual RTF files under 10–20 MB for fastest upload and reliable rendering; very large embedded images increase rasterization size.
To preserve legibility, use system fonts or embed fonts in the RTF before conversion; otherwise text may be rasterized and lose crispness.
For best fax readability, convert to bi-tonal (black-and-white) at 200–300 DPI; use halftone/dithering for photographs but expect larger file sizes.
Batch conversions are efficient: combine multiple RTF files into a single multi-page TIFF when sending multi-page faxes; ensure page order and margins are correct before conversion.
Love this tool for quickly converting my RTF files to fax format.
Sarah T.
Designer
Reliable and easy to use, it saved us time on faxing documents.
John M.
Office Manager
The conversion quality is excellent, perfect for sending contracts via fax.
Emily R.
Legal Assistant
Start your free RTF to FAX conversion now.
Drag your file here to to upload.
Up to 250MB
Limitations: fax formats are raster/monochrome and do not preserve editable RTF structure, hyperlinks, or interactive elements—everything becomes a flattened image.