AZF File

What are AZF files and how to open them

Are you having problems opening an AZF file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your AZF files.

What is an AZF file?

An .AZF file is an AirZip FileSECURE Format (print Quality) file.

AirZip FileSECURE print‐quality files are secured document files produced by AirZip FileSECURE's authoring tools using an option that embeds a high‐fidelity version of the document meant for printing. These files package the original document and a "print‐quality version" so that when opened in the FileSECURE Reader, they display exactly as the document would look in print. This ensures the layout, fonts, graphics, and image quality are preserved even without access to the original authoring software.

The print‐quality format is created at the time the document is secured by the Author component of FileSECURE. That Author tool may convert or render the document into a form optimized for printing, include high‐resolution images or a PDF‐style rendition. Recipients use the FileSECURE Reader to view or print the contents; permissions set by the author determine whether printing, copying or other actions are allowed. The Reader shows how the finalized document will appear on paper.

Internally, these files begin with a fixed signature: the ASCII characters "AZF" followed by a control byte 0x17 at the very start of the file (bytes "41 5A 46 17" at offset zero).

How to open AZF files

Important: Different programs may use files with the AZF file extension for different purposes, so unless you are sure which format your AZF file is, you may need to try a few different programs.

While we have not verified the app ourselves yet, our users have suggested a single AZF opener which you will find listed below.

Last updated: August 22, 2026

Various apps that use files with this extension

These apps are known to open certain types of AZF files. Remember, different programs may use AZF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about AZF file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.