Pentax is one of the largest manufacturers of photography devices. PTX files that are created using a Pentax camera are an image file type that contains RAW image files which are stored just as they were created with the sensor included in a Pentax digital camera.
PaintShop Pro is an image editing application created by Corel.
If the PTX files are related to PaintShop Pro, the files are an image file type that contains data which describes textures that are applied to raster images. PTX files contain data and information related to the program that created the file.
The programs and applications include PaintShop Pro, Pentax, Punch! and E-Transcript. Files that contain the file extension PTX are associated with multiple programs and applications and various file types.