A brief overview of file formats generally used:
- JPEG is used in the majority of the cameras that are not SLR cameras. The SLR cameras have the option to use this file and the RAW file format. The jpeg is a compression file format and is used for images that are uploaded into the web, and for email.
- PSD, PDD are the file names that Photoshop uses to save the information about the changes you make to a file using the Photoshop programs. It is the default extension when you save a file. The extension can be changed using the drop down menu.
- TIFF can be used to save a picture if you want to continue working with it in other programs, namely Word or Publisher.
- RAW files must be processed with software before it is considered a photograph. Working with this type of file allows the adjustments to be made to the image without losing any pixels. The finished product is then saved with any of the extensions above for viewing.