| Developer(s) | New House Internet Services BV | 
|---|---|
| Initial release | July 27, 2001 | 
| Stable release | 13.0 [1]     / January 31, 2025 | 
| Written in | C, C++ | 
| Operating system | Windows, macOS | 
| Available in | English, Russian, French, Spanish, Korean, Chinese (simplified), German, Japanese, Dutch, Portuguese | 
| Type | Raster graphics editor | 
| License | Commercial proprietary software | 
| Website | ptgui | 
PTGui is a panorama photo stitching program for Windows and macOS developed by New House Internet Services BV. PTGui was created as a GUI frontend to Helmut Dersch's Panorama Tools. It features its own stitching and blending engine [2] along with compatibility to Panorama Tools. PTGui supports telephoto, normal, wide angle and fisheye lenses [3] to create partial cylindrical up to full spherical panoramas. PTGui can handle multiple rows of images. [4]
Originally released for Windows, version 6.0.3 introduced support for Mac OS X. [5]
The 'free trial version' of PTGui is fully functional but creates panoramas with embedded visible watermarks. [6]
PTGui Pro also includes HDR and tone mapping support. [7]
The upcoming version 13 beta 8 - though as of Nov. 2024 still slated as beta status, is now reported as quite reliable after 8 iterations - includes the following new features:  a Patch Editor (PTGui Pro only), DNG output, improved RAW / DNG handling, and JPEG 2000 support. [8]  [9] 
 Version 13 beta 8 also claims significant performance improvements when optimizing large panoramas and also a speedier optimum seam finding algorithm. [9]