Opening NUSM Files

The NUSM file type is primarily associated with XnViewMP.

NUSM	File extension: NUSM
	File type:	secured file format

What is a NUSM file?

NUSM files mostly belong to XnViewMP. NUSM files are not simple image or document files. They act as containers that hold standard media files such as JPG images or PDF documents, but with an extra layer of encryption and security.
Encrypted Image Files

Many of these files use the JPG format internally.

They are managed by XnViewMP, and you can find more details at the XnViewMP webpage.

Nuance PDF Security

Other instances hold PDF content secured by Nuance products like Nuance PDF Create and Nuance PDF Converter Professional.

FilExt.com note: This setup means the file holds common media, but its contents are locked and require specialized software to view or modify.

How to open NUSM files

You need a suitable software like XnViewMP to open a NUSM file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your NUSM file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NUSM file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NUSM Text Viewer

Choose your .nusm file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert NUSM files:

XnViewMP
See the previous paragraphs to learn more about the main application. NUSM files are often referred to as XnViewMP encodeds because this type of file is primarily created or used by this software.
XnViewMP / Nuance PDF software
The .nusm file extension appears to be associated primarily with encrypted image files, particularly those handled by image viewers like XnViewMP. These files likely utilize a form of encryption to protect the image data contained within. Additionally, the extension may also be encountered in relation to Nuance PDF security, possibly indicating files related to security features implemented within Nuance PDF software. This connection suggests potential usage in securing or managing PDF documents within the Nuance PDF ecosystem. Note: Files with the .NUSM extension are often associated with ransomware infections. This type of malware encrypts files on a victim's computer and appends the .NUSM extension, rendering them inaccessible without a decryption key. Attackers typically demand a ransom in exchange for this key. You may find decryption tools on NoMoreRansom.org.It is strongly recommended that you do not pay the ransom. Doing so does not guarantee file recovery and only encourages further criminal activity. Instead, report the incident to law enforcement and seek assistance from cybersecurity professionals. This file format is classified as Encrypted Image/Document.

Technical Data for NUSM File Extension

File classification:

Encoded

Related files:

num, restore, nsm, jpg, sum, thumb-fd, thumb3, thumb0, jpeg, png, gif, bmp, pdf, tif

a nusm secured file format is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with NUSM files

Associate the NUSM file extension with the correct application.
Update your software that should actually open secured file formats. Because only the current version supports the latest NUSM file format. Search, therefore, e.g. on the manufacturer website after an available XnViewMP update.
To make sure that your NUSM file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .NUSM file online - secure, fast, and no downloads needed.