.ptx
?E-Transcript File
- :E-Transcript File
- :Thomson West
- :
- :Pliki układów stron

Windows

MAC OS
West RealLegal E-Transcript Viewer
.ptx
?Paint Shop Pro Texture File
- :Paint Shop Pro Texture File
- :Corel
- :
- :Pliki obrazów rastrowych

Windows
.ptx
?Pentax RAW Image File
- :Pentax RAW Image File
- :Pentax
- :
- :Pliki obrazów rastrowych

MAC OS
Pentax Photo Browser or Photo
UFRaw

Linux
UFRaw (Unidentified Flying Raw)
The GIMP with UFRaw plugin