GPR Format Guide

Available Conversions

About GPR Format

GPR (GoPro RAW) is a RAW image format developed by GoPro for their action cameras, based on the Adobe DNG (Digital Negative) specification. GPR files store 12-bit sensor data captured by GoPro's small-format image sensors, preserving the full unprocessed information from the camera's Bayer color filter array for maximum post-processing flexibility. The format was introduced with GoPro's RAW photo mode, which captures images alongside the standard JPEG output, allowing photographers to apply their own white balance, exposure adjustments, and color grading to action camera footage. Because GPR is built on the open DNG standard, it benefits from broad software compatibility, as any application that supports DNG can typically read GPR files with minimal or no additional support required.

History of GPR

GoPro introduced RAW photo capture capabilities with the Hero 5 Black in 2016, marking the first time an action camera offered professional-quality RAW image output. Rather than developing a completely proprietary format, GoPro wisely chose to base their RAW format on Adobe's DNG specification, ensuring immediate compatibility with the vast ecosystem of RAW processing software. The GPR format was adopted across subsequent GoPro generations, including the Hero 6 Black (2017), Hero 7 Black (2018), Hero 8 Black (2019), Hero 9 Black (2020), Hero 10 Black (2021), Hero 11 Black (2022), and Hero 12 Black (2023). Each generation brought improvements to sensor resolution and quality, from the 12-megapixel sensors of early models to the 27-megapixel sensor in the Hero 12 Black. GoPro also introduced SuperPhoto and HDR processing modes that work alongside GPR capture, giving photographers both processed and RAW versions of their action shots. The format's DNG foundation meant that Adobe Lightroom, Camera Raw, and other popular tools could open GPR files immediately, without waiting for dedicated profile updates.

Key Features and Uses

GPR files store 12-bit RAW sensor data in a DNG-compatible container, providing 4,096 levels of tonal information per color channel. The format preserves the full Bayer mosaic data from GoPro's image sensors, enabling complete control over demosaicing, white balance, exposure compensation, and noise reduction in post-processing. GPR files include embedded JPEG previews for quick browsing, along with comprehensive EXIF metadata including GPS coordinates, camera orientation, accelerometer data, and GoPro-specific shooting parameters. The DNG container ensures that the files include a standardized color matrix and calibration data for accurate color reproduction. File sizes typically range from 10-30 MB depending on sensor resolution and scene complexity. GoPro's wide-angle lens characteristics and action-oriented shooting scenarios produce GPR files that benefit significantly from post-processing, particularly for lens distortion correction, horizon leveling, and exposure recovery in challenging outdoor lighting conditions.

Common Applications

GPR files are primarily used by action sports photographers, adventure travelers, and content creators who need maximum editing flexibility from their GoPro footage. Extreme sports athletes and filmmakers capture GPR images during surfing, skiing, mountain biking, skydiving, and other high-action activities where the dynamic lighting conditions benefit from RAW post-processing. Travel and adventure photographers use GPR mode to capture landscapes, underwater scenes, and time-lapse sequences with the full dynamic range of the sensor, enabling recovery of highlight and shadow detail that would be lost in JPEG compression. Real estate photographers and drone operators using GoPro cameras capture GPR files for HDR processing and wide-angle interior shots. Converting GPR to widely supported formats like TIFF, JPG, or PNG is essential for sharing on social media, printing, web publishing, and integrating action camera photos into professional photography workflows.

Advantages and Disadvantages