DNG to FAX Converter

Online DNG to FAX conversion — fast and free

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Instant Access

Jump straight into DNG to FAX conversion with zero setup. No account creation or login required — the tool is ready when you are.

No Install Needed

Skip software downloads entirely — the DNG to FAX converter works in your browser. Open the page, upload your DNG photo, and convert.

Batch Processing

Convert multiple DNG photos to FAX at once. Upload a batch, set the format, and download all converted images together.

How to convert DNG to FAX

1

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

2

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

3

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

About formats

DNG (Digital Negative) is an open, royalty-free RAW image format published by Adobe Systems on September 27, 2004, designed to address the proliferation of incompatible proprietary RAW formats from different camera manufacturers. Based on the TIFF/EP standard (ISO 12234-2), DNG provides a well-documented container for raw sensor data with standardized metadata tags that describe the camera's color filter array pattern, color calibration matrices, default rendering parameters, and opcodes for geometric corrections. The format supports both original raw mosaic data and linear (demosaiced) DNG, as well as lossy DNG using JPEG compression for smaller archive sizes when full quality is not critical. Adobe has iterated the specification through multiple versions, adding support for transparency maps, floating-point HDR data, enhanced color profiles, and semantic masks in newer revisions. One advantage is archival reliability — DNG's published, non-proprietary specification eliminates the risk that a camera manufacturer's format becomes unreadable when that company exits the market or drops support for older models, a concern that motivated Adobe's creation of the format. The format also enables embedded original RAW data, letting users convert their CR2, NEF, or ARW files to DNG while optionally keeping the original bits inside the DNG for reversibility. Broad ecosystem support is another strength: Adobe Lightroom, Photoshop, and Camera Raw treat DNG as a first-class format, and many smartphone manufacturers (including Google and Apple for certain modes) output DNG natively.
Developer: Adobe Systems
Initial release: September 27, 2004
FAX is a generic image file extension associated with facsimile transmission formats standardized by the ITU-T (formerly CCITT), with the underlying Group 3 compression standard ratified in 1980. FAX files typically contain monochrome (1-bit, black and white) image data compressed using the Modified Huffman (MH) encoding defined in ITU-T Recommendation T.4, which assigns variable-length codes to run lengths of consecutive white or black pixels along each scanline. The standard resolution for Group 3 fax is 204x98 dpi (normal mode) or 204x196 dpi (fine mode), reflecting the capabilities of thermal and laser fax machines of the era. FAX files encountered digitally are often raw Group 3 encoded bitstreams or TIFF wrappers with CCITT Group 3 compression (TIFF compression tag 3). The Group 3 encoding scheme is highly efficient for typical business documents — pages with mostly white space and black text — achieving compression ratios of 10:1 to 20:1 compared to uncompressed bitmaps. One advantage is universal fax system compatibility: Group 3 encoding is the mandatory baseline for all fax machines worldwide, meaning FAX files contain data in exactly the format transmitted over telephone lines, preserving the original fax data without transcoding losses. The format's role in business communications history provides another dimension — billions of fax transmissions using this encoding moved legal documents, medical records, and business correspondence for decades, and archived FAX files represent an important documentary record. FAX images can be viewed and converted using LibreOffice, ImageMagick, GIMP, and standard document management systems.
Developer: ITU-T
Initial release: 1980

Frequently Asked Questions

Why convert DNG to FAX?

Fax systems require specific encoding formats like FAX. Converting from DNG creates fax-ready images for document transmission.

What programs open FAX?

FAX is supported by fax software, IrfanView, GIMP, and Group 3 fax-compatible applications.

Can I convert multiple DNG photos at once?

Yes — batch upload is supported. Queue several DNG images and convert them all to FAX in one session without repeating the process.

Will my DNG metadata (EXIF) be preserved?

Metadata handling depends on the target format. Where FAX supports it, camera data like shooting parameters and GPS coordinates can be retained.

Can I convert DNG from Google Drive?

Yes — import DNG photos directly from Google Drive or Dropbox without downloading them to your device first. Cloud-to-cloud workflow.

Is registration required?

No account is needed for basic DNG to FAX conversions. Just open the converter, upload your DNG photo, and download the result.