• Certain software is needed to open a PDD file."My New Toy" is Copyrighted by Flickr user: seanmcgrath (Sean McGrath) under the Creative Commons Attribution license.
  
  

Identification

• PDD files are saved with ".pdd" as the end of their file names. A PDD file is typically a picture, bitmap image or photo file type.
  
  

Adobe

• Adobe PhotoDeluxe, a software program for photo editing, saves files with a PDD file extension. To open a PDD file for this program, you will need Adobe Photoshop Elements 8, Adobe PhotoDeluxe or Adobe Photoshop CS4 on either a PC or Mac computer.
  
  

Medtronic

• PDD file extensions are also used with the Medtronic CareLink program, which is used in the medical field to store patient information. Medtronic Chronicle software is required to open a PDD file of this type.
  
  

Corel

• Corel Paint Shop Pro saves files with a PDD file extension as well. Corel Paint Shop Pro is also a photo editing software.
  
  

Database Designer

• The other computer program to use PDD file extensions is Database Designer for PostgreSQL. This software allows you to build, design and interact with databases.