Digital Photo Professional (DPP) is Canon’s RAW converter and image editing software. RAW files can be shot with EOS cameras and some compact models including PowerShot S and G series cameras. A RAW file is the data captured by the digital sensor, with minimal in-camera processing. You can’t actually view a RAW file – DPP opens a copy of the file in a format that can be displayed on a computer screen. The original file remains unchanged.
The advantage of a RAW file is that you do not have to worry about many of the camera settings. You need to get the exposure (aperture, shutter speed and ISO) correct, but features such as white balance, Picture Style and Auto Lighting Optimiser can be applied in DPP – you can experiment with different settings to see which gives the best results. Brightness, contrast and colour saturation and tone adjustments can be made. DPP also allows you to apply sharpness, noise reduction and lens aberration corrections.
Once all the modifications have been made, the image can be saved as a JPEG or TIFF file. The original RAW file remains unchanged and can be used to create a different photo from the same image. DPP can also be used to edit JPEG images files, though the range of available corrections is more limited.
If you would like to discover more about the benefits of shooting images in RAW, then this tutorial shows what you can achieve in much greater detail.