How to Convert Multiple SYJ Files to DDS?
1. Download and Install reaConverter
Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.
2. Load your SYJ files
Add SYJ files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

3. Select DDS as output format
Select DDS from the output format list and set your destination folder. You can also adjust quality and compression settings.

4. Start SYJ to DDS conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.

When finished, your new .dds files will be waiting in the destination folder.





