Convert X3F to FAX

X3F to FAX with professional color control. reaConverter batch converts RAW files with options for color balance and output quality.

Got a folder full of X3F files? reaConverter batch converts them to FAX in minutes, not hours. Local processing means instant results, even with thousands of files. Studios rely on it for consistent color across thousands of photos.

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X3FFAX

How to Convert Multiple X3F Images to FAX?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting X3F files in under two minutes. reaConverter also includes editing tools: resize, crop, rotate, and more.

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Install reaConverter

2. Load your X3F files

Load your X3F RAW photos into reaConverter. Add entire shoots at once and process them in minutes.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

Load your X3F files into reaConverter

3. Select FAX as output format

Choose FAX as output format. Adjust color profile, quality, and resolution settings to match your photography workflow.

Select FAX as output format

4. Start X3F to FAX conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

Start Conversion

When the batch finishes, your FAX files are ready in the destination folder you chose earlier.

X3F to FAX Converter

reaConverter offers the fastest, simplest solution for converting your X3F files into FAX in seconds - all photos processed on your PC for maximum privacy and speed.

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Do more with your images

Converting X3F images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:
Last updated on January 18, 2026
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
Satisfied Customer
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer

X3F to FAX Conversion: FAQ

What are X3F files?

X3F is a RAW image format used by Sigma cameras. This well-known Japanese brand is responsible for producing high-quality lenses, flashes, cameras and other photographic accessories. The X3F format is enhanced by the use of Foveon technology, which allows the camera's sensor to capture colors with an increased richness of detail. As opposed to JPG, X3F images allow the photographer to capture a wider variety of image information, which he will be able to select during post-processing.

What are FAX files?

FAX files contain incoming or outgoing fax images created using specialized software, usually as part of a fax machine or a computer with a fax modem. This format is a fixed width Group 3 TIFF saved in black&white colors.

Can reaConverter convert X3F to FAX?

Yes! reaConverter instantly converts .x3f to .fax with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert X3F to FAX online?

If you only need to convert a few X3F files to FAX format, feel free to try our free online free online X3F to FAX converter — perfect for small batches with no installation needed!

How can I turn X3F files into FAX on my computer?

The best way to change X3Fs to FAXs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from X3F to FAX.

How can I automate X3F to FAX files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert X3F files to FAX using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line x3f to fax converter for batch processing.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert RAW photo formatsCopy IPTC dataConvert vector images

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