PTM File

What are PTM files and how to open them

Are you having problems opening a PTM file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a PTM file?

PTM files have multiple uses, and Polynomial Texture Map is one of them. Read more about the other uses further down the page.

Polynomial Texture Map

These files contain a conventional texture map that allows enhanced image quality and allows mapping of varying colors to provide more depth and variance in the outcome of the image. PTM files store second-order bi-quadratic polynomial coefficients per pixel.

Compared to a typical picture that store color per pixel, .ptm store image data that can be dynamic depending on the set up of the environment of the image.

The polynomial coefficient of the .ptm undergoes changes. The appearance of the picture or image will change based on either light or viewing position. PTM works exactly like lenticular printed images, but in computer data form.

How to open PTM files

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

While we have not verified the apps ourselves yet, our users have suggested ten different PTM openers which you will find listed below.

Last updated: December 9, 2022

More file formats using the PTM extension

Through our research of PTM files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • Microsoft MapPoint Map
  • Poly Tracker Music Module
  • ProTracker IFF Module

Various apps that use files with this extension

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

Face Off MaxFace Off MaxDiscontinued
OpenMPT / ModPlug TrackerOpenMPT / ModPlug TrackerUser submitted
SqrSoft Advanced CrossfadingSqrSoft Advanced CrossfadingUser submitted
SHOUTcast Source DSPSHOUTcast Source DSPUser submitted
Winamp Detector Plug-inWinamp Detector Plug-inUser submitted
ModPlug PlayerModPlug PlayerUser submitted
ITN ConverterITN ConverterUser submitted
Photo to MoviePhoto to MovieUser submitted
Microsoft MapPoint ApplicationMicrosoft MapPoint ApplicationUser submitted

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