How to Convert Multiple CR3 Images to HPG?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting CR3 files in under two minutes. reaConverter also includes editing tools: resize, crop, rotate, and more.
2. Load your CR3 files
Load your CR3 files into reaConverter. You can add individual files or point to folders, and the software will queue everything automatically.
Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

3. Select HPG as output format
Select HPG from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start CR3 to HPG conversion
Then simply press the Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your HPG files in the destination folder you selected.
How CR3 and HPG differ in practice
CR3 files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to HPG 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. CR3 is made of pixels and HPG is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a HPG container, and that determines whether a CAD or design tool can work with it.








