GPS Photo Editor

The GPS Photo Editor tool provides an in-browser workflow to read, validate, and write GPS metadata to image files. It targets photographers, GIS professionals, media teams, and researchers who need accurate geotags for map-based filtering, asset management, and privacy adjustments. Supported formats include JPEG and PNG that carry EXIF GPS fields. The core capability is to set or adjust GPSLatitude, GPSLongitude, and GPSAltitude, with optional support for GPSLatitudeRef and GPSLongitudeRef. Decimals can be entered directly or converted from DMS, enabling flexible data entry. The tool ensures the resulting image retains non-GPS metadata and original image quality as much as possible.
How it works conceptually: the tool reads the existing GPS block, applies user-provided coordinates, and re-encodes only metadata changes into a new file. It validates coordinate ranges and adheres to the WGS84 datum. For privacy, users can strip GPS data entirely or selectively redact coordinates while leaving other metadata intact. Advanced users can process multiple images in a single batch and export per-image results. Since the operation is metadata-only, the visual appearance of photos remains unchanged.
Benefits and use cases: asset managers can standardize location data across a catalog, researchers can correct historical data, and creators can share travel imagery without exposing exact positions if needed. Unique differentiators include strict EXIF-compliant edits, an audit-friendly copy-on-write workflow, and optional batch processing. The tool is designed for speed, accuracy, and interoperability with downstream workflows in photo libraries and GIS pipelines.
Edge cases and limitations: some PNGs lack EXIF GPS or store GPS in alternative blocks; images with protected or read-only metadata may require permission; edits may influence compatibility with older viewers if uncommon tags are used; results may vary when embedded XMP references GPS differently.