Tags are not the picture
Drop the GPS field, then look at the photo. The tool does not blur a landmark.
Cameras store location, camera model, and timestamps in EXIF. Removing those fields means a viewer who only reads metadata no longer sees the coordinates. The pixels are unchanged. A station name, a house number, or a skyline that a person can recognize is still in the image.
The workflow is short. Open the original and read the GPS or author line so you know it was there. Export a copy with the tags removed. Read the export and confirm the line is gone. The camera roll still has the original. Delete that original if the location was the secret. Sending the export and keeping the original on a synced camera roll puts the coordinates back in another app’s library.
Do not treat a missing GPS line as anonymity. If the subject of the photo is the thing you needed to hide, the file is the wrong file to send. Cropping or covering that subject is a different edit, and this tool does not do it.
The field-by-field version is the EXIF and metadata guide. The tool is RookScrub.