.PXM File Extension
File TypePixelmator Image File
What is a PXM file?
Proprietary raster image format used by Pixelmator, an image editing program for Mac OS X; may include multiple layers, layer masks, color correction settings, and image metadata.
PXM is a lossless format that does not lose quality when saved. PXM files can be exported to more standard image formats within Pixelmator.