Can I erase all photo metadata using Gimp?

GIMP 2.9.4 and later has a built-in metadata editor. It is accessed by selecting Image -> Metadata -> Edit Metadata. The GIMP Metadata Editor can edit a wide variety of image metadata fields including GPS metadata. To write metadata click the Write Metadata button in the lower right corner of the Metadata Editor window.

^{GIMP 2.10}

GIMP 2.10 can be installed as a snap package in all currently supported versions of Ubuntu or as an apt package in Ubuntu 18.10 and later.

Image::ExifTool (libimage-exiftool-perl) is a library and program (exiftool) to read and write metadata information in multimedia files. To install libimage-exiftool-perl in all currently supported versions of Ubuntu open the terminal and type:

sudo apt install libimage-exiftool-perl

To quickly erase all of an image's metadata run this command:

exiftool -overwrite_original -all= /path/to/file