What is the difference between .plt and .hdr?
- Extension
 - .plt
 - .hdr
 
- Format
 - Binary
 - Binary
 
- Category
 - Vector Image
 - Raster Image
 
- Developer
 - Autodesk
 - HDRsoft
 
- Description
 - The PLT file extension is a vector-based plotter file developed by Autodesk, Inc. to contain plotting details from a certain CAD or computer-aided design file.
 - Raster image or digital photo saved in HDRsoft's High Dynamic Range (HDR) image format; used for enhancing the color and brightness range of a digital image; can be processed to fix dark shadows or washed out areas of a picture.
 
- MIME Type
 - application/x-plt
 - image/vnd.radiance
 
- Sample
 - sample.hdr
 
- Wikipedia
 - .hdr on Wikipedia