.PM File Extension

PM files exist as 3 different types. Please find information about each of them below.

Type 1: Unix XV Graphic File

General Information

Title PM File Extension
Extension .pm
Full Form Unix XV Graphic File
File Type Image File
Developer John Bradley
MIME Type image/x-xv

File Function

Primary Function Store image
Additional Functions Display image
Features Bitmap, Color

File Characteristics

Quality Varies
Supports Layers No
Supports Transparency No
Editable Yes

Use Cases

Image Editing Yes
Image Conversion Yes
Graphic Design Yes

Security and Practices

Security Risks Low risk
Best Practices Verify source, Regular updates

Historical/Version Information

Initial Release 1980s
Latest Version XV 3.10a (1994)

Associated Types

Similar Extensions .xv, .pnm, .pgm, .pbm

Software Compatibility

Software Usage Policy OS Compatibility
XV Free, Shareware Unix, Linux
Netpbm Free Unix, Linux, Windows
GIMP Free Windows, Mac, Linux

Type 2: Perl Module

General Information

Title PM File Extension
Extension .pm
Full Form Perl Module File
File Type Module/Script File
Developer Larry Wall
MIME Type text/x-perl

File Function

Primary Function Define functions, variables
Additional Functions Reusable libraries, namespaces
Features Package declaration, Object-oriented

File Characteristics

Quality Depends on content
Supports Layers N/A
Supports Transparency N/A
Editable Yes

Use Cases

Web Development Yes
Automation Yes
System Administration Yes

Security and Practices

Security Risks Code injection
Best Practices Input validation, Taint checking

Historical/Version Information

Initial Release 1987
Latest Version Perl 5.34.0 (2021)

Associated Types

Similar Extensions .pl, .cgi, .t

Software Compatibility

Software Usage Policy OS Compatibility
Perl Free Cross-platform
Padre Free Windows, Mac, Linux
Komodo IDE Paid Windows, Mac, Linux

Type 3: Progressive Mesh

The pm file extension is used in the Trainz Railroad Simulator game series. Pm files contain 3D train models. These models use progressive mesh technology and bitmap images. The default software to op...

General Information

Title PM File Extension
Extension .pm
Full Form Progressive Mesh File
File Type 3D Graphics File
Developer Various
MIME Type application/octet-stream

File Function

Primary Function Store 3D models
Additional Functions Support LOD, Stream models
Features Progressive detail, Mesh simplification

File Characteristics

Quality Scalable
Supports Layers No
Supports Transparency Model-dependent
Editable Yes

Use Cases

Game Development Yes
3D Visualization Yes
Streaming 3D content Yes

Security and Practices

Security Risks File corruption
Best Practices Validation, Backup

Historical/Version Information

Initial Release Varies
Latest Version Dependent on software

Associated Types

Similar Extensions .3ds, .obj, .ply

Software Compatibility

Software Usage Policy OS Compatibility
Microsoft DirectX SDK Free Windows
Various 3D Graphics Tools Varies Varies