Convert J2K to FAX

The quick and simple way to change your J2K into FAX files is to use a quality piece of software, such as reaConverter.

reaConverter offers offline file conversion between numerous formats, including J2K to FAX, plus additional image editing tools for enhanced file preparation.

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J2K to FAX
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J2KFAX

How to Convert Multiple J2K Images to FAX?

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. At the same time, it will allow you to apply image editing options during conversion.

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Install reaConverter

2. Load your J2K files

Start reaConverter and load all the .j2k files you intend to convert into .fax. The software supports multiple J2K conversion and processes all files locally on your computer.

Select J2Ks from a folder or by drag-and-dropping them directly into the reaConverter window.

Load your J2K files into reaConverter

3. Select FAX as output format

Pick the FAX as output format and choose the destination folder where you want to save new .fax files.

Select FAX as output format

4. Start J2K to FAX conversion

Then simply press Convert button and your conversion will begin in no time!

Screenshot

Once the conversion is complete, you can find your FAX files in the destination folder you selected.

J2K to FAX offline

reaConverter offers the fastest, simplest solution for converting your J2K files into FAX in seconds - all images processed on your PC for maximum privacy and speed.

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Do more with your images

Converting J2K 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 April 23, 2025
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
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
Satisfied Customer
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Happy User

J2K to FAX Conversion: FAQ

What are J2K files?

J2K represents an upgrade of the JPEG format, including more features, such as supporting transparency and alpha channel, or lossless compression. J2K is part of a larger pack of improved JPEG extensions, known as JPEG2000, together with formats such as J2C, JPX, JPM or JP2. Most of these formats are compatible with mainstream image viewers, but do not enjoy the popularity of JPEG.

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 J2K to FAX?

Yes! reaConverter instantly converts .j2k 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 J2K to FAX online?

If you only need to convert a few J2K files to FAX format, feel free to try our free online free online J2K to FAX converter — perfect for small batches with no installation needed!

How can I turn J2K files into FAX on my computer?

The best way to change J2Ks 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 J2K to FAX.

How can I automate J2K 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 J2K 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 j2k to fax converter for batch processing.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert CAD formatsChange image bit depthSet file date

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