Changing the screenshot format

As of 2.1.0 WoW will default to saving your screenshots as .jpg, i.e. JPEG format. This will cut down file size but it will also destroy some detail due to JPG being a lossy format. People who want to change the format back to TARGA (TGA) will need to use the following command:

/console screenshotFormat tga

You may also set the format to JPEG but change the quality (decreasing compression and increasing size) with the following commands:

/console screenshotFormat jpg /console screenshotQuality 10

You can also look for and edit (or add) the 2 lines in config.wtf:

SET screenshotFormat "f" SET screenshotQuality "q"

Where f is the format (jpg or tga) and q is the quality (1-10). Note the double quotes. The change will be reflected the next time you start the game.

Note that screenshotQuality only affects JPEG screenshots (TGA screenshots always use lossless quality). There are reports that an older version would compress the images to JPEG and then save them as TGA (causing a loss of quality) but this does not happen with the current patch. Also, note that anything other than "tga" in screenshotFormat sets it to the default (JPEG).

If you want to revert to the original settings you can use these commands:

/console screenshotFormat jpg /console screenshotQuality 3

Optionally you can create an addon using the SetCVar or ConsoleExec API.
 * OS X / Mac limitations for screenshotFormat & screenshotQuality

As of 10th March 2012 (4.3.3)

Source : http://us.battle.net/wow/en/forum/topic/4366252520#5
 * .tga is not a supported format for screenshots on Macs. This is due to the removal of the QuickTime APIs that was used for this.
 * The screenshotQuality cvar is not supported on Mac.

Examples

 * Some example screenshots