If you are seeking information about file extensions, then you are in the right place at the right time.

Details of extension .pm4

On this page, we're going to take a closer look at the .pm4 file extension.

We'll explain what exactly a .pm4 file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .pm4 files into different formats, we'll give you some tips on how to do that too.

Let's see the 2 file formats associated with this file extension!


  1. Adobe Pagemaker 4.0 Document
  2. Pegasus Mail General Filtering Rules Data

We trust that our website will provide valuable information for you. If you have any questions, just ask!

Adobe Pagemaker 4.0 Document

pm4 file - Adobe Pagemaker 4.0 Document
The PM4 file belongs to the Document category and works with Adobe PageMaker, being used as an Adobe Pagemaker 4.0 Document. Adobe Pagemaker is a decent desktop publishing software program if you want to create a simple desktop publishing publication like a newsletter or a catalog. The developer is still actively supporting the Adobe PageMaker, likely. Our data shows that Adobe PageMaker uses 54 more file types.
Application: Adobe PageMaker
Program name: -
Category: Document files
Mime-type: application/octet-stream
Related extensions:
.flt Adobe PageMaker Import Filter
.pm6 Adobe Pagemaker 6.0 Document
.rsl Adobe PageMaker Resource
.at65 Adobe PageMaker for Mac 6.5 Template

Pegasus Mail General Filtering Rules Data

pm4 file - Pegasus Mail General Filtering Rules Data
The PM4 file belongs to the Data category and works with Pegasus Mail, being used as a Pegasus Mail General Filtering Rules Data. Pegasus Mail is a previously freeware, proprietary, email client that is developed and maintained by David Harris. The developer is still actively supporting the Pegasus Mail, likely. Our data shows that Pegasus Mail uses 63 more file types.
Application: Pegasus Mail
Program name: -
Category: Data files
Mime-type: application/octet-stream
Related extensions:
.pmo Pegasus Mail Saved Message
.asv Pegasus Mail Auto-saved Message
.pmt Pegasus Mail Tray Data
.pm Pegasus Mail Frequently Used Data

The .pm4 file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .pm4 extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .pm4 file extension wrong?

In our database, we came across the following similar extensions:

.ph4 PHP Script
.pmr PhotoModeler Project
.lm4 Steinberg LM-4 Program
.pl4 Micrografx Designer 4.0 Palette
.pmt Technics SX-KN6000 Panel Memory Data
.m4 M4 Macro File

The .pm4 extension is frequently misused

People sometimes confuse the .pm4 filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

pj4 (1), pmt (1), lm4 (1), pm (1), m4 (1), pk4 (1), p4 (1), mp4 (1), pmr (1), pl4 (1)

Having trouble opening a .pm4 file?

If you want to open a .pm4 file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .pm4 association can trigger this error.

Windows can't open this file:

File: example.pm4

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android