How to Convert Multiple CR2 Images to DDS?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting CR2 files in under two minutes. reaConverter also includes editing tools: resize, crop, rotate, and more.
2. Load your CR2 files
Load your CR2 RAW photos into reaConverter. Add entire shoots at once and process them in minutes.
Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

3. Select DDS as output format
Choose DDS as output format. Adjust color profile, quality, and resolution settings to match your photography workflow.

4. Start CR2 to DDS conversion
Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

When the batch finishes, your DDS files are ready in the destination folder you chose earlier.
How CR2 and DDS differ in practice
CR2 files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to DDS bakes those decisions into the pixels, and highlight recovery is no longer available afterwards. Set white balance and exposure before the run rather than after. CR2 carries 14 bits per channel and DDS carries 8, so tonal steps get coarser during conversion. It shows up first in smooth gradients such as skies. If the result will be edited further, move to an 8-bit format only at the very end.






