https://techdoku.nogafam.es/ 2026-05-11T12:01:32+00:00 https://techdoku.nogafam.es/ https://techdoku.nogafam.es/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2020-09-06T12:06:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:ofsec:priv:image_metadata&rev=1599393986&do=diff How to remove all metadata from an image on Linux Install the package (on Debian-based) apt install libimage-exiftool-perl We can now remove the metadata # syntax exiftool -all=[VALUE] [AFILEORFILES] # example: exiftool -all= *.jpg This operation also changes file modification time, if you want to recover the modification time of files you can do it with a simple find/sed command text/html 2020-03-12T23:43:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:ofsec:priv:verify_gpg&rev=1584056627&do=diff Verify files with GPG signatures (example: TorBrowser) This little snippet helps you understand the basics of verifying files with their GPG signatures (.asc) # download the keys from key-server (command can be different) gpg --auto-key-locate nodefault,wkd --locate-keys torbrowser@torproject.org # export the keyring given the public key (in this case: EF6E286DDA85EA2A4BA7DE684E2C6E879328290) gpg --output ./tor.keyring --export 0xEF6E286DDA85EA2A4BA7DE684E2C6E879328290 # verify the xz fil… text/html 2020-09-05T22:41:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:ofsec:priv:video_metadata&rev=1599345665&do=diff Remove all metadata from ANY video file using ffmpeg Just copy the audio and video streams and remove the metadata: ffmpeg -i in.mov -map_metadata -1 -c:v copy -c:a copy out.mov Source: <https://superuser.com/questions/441361/strip-metadata-from-all-formats-with-ffmpeg>