How to Convert PGM to DDS

DDS is Microsoft's GPU-optimized texture format, built so graphics cards can read compressed texture data directly without a separate decompression step, which is why it's the standard format for DirectX games and engines like Unity and Unreal. Converting PGM to DDS is unusual but occasionally necessary when grayscale data such as a height map, normal map channel, or simulation output needs to become an actual in-game texture.

Converting PGM to DDS handles the decode and GPU-specific compression in one step, letting the resulting texture load and render efficiently the way it's specifically designed to handle DDS files.

1. Install Turbo Batch Image Converter Pro on your Windows PC.
2. Open the app and select Batch Mode for multiple files, or Individual Mode for a single PGM.
3. Drag your PGM file or folder into the app window, enabling recursive folder scanning if needed.
4. Set the "From" format to PGM and the "To" format to DDS.
5. Click Convert. DDS files are written to the output folder, fully offline.

• 100% offline — your texture assets are never uploaded anywhere
• Produces DDS files compatible with DirectX games and game engines
• Useful for height maps and grayscale texture channels
• Bulk conversion of entire folders, including sub-folders, in one click
• Multi-core processing for fast handling of large batches
• Option to delete original PGM files automatically after conversion