Please consider information in the picture

[Zugschlus]

Hi,
to prevent users from mixing up the printouts, it would be great if one could give a string that would be included in the .png picture such as "GnuPG key 2017-08-31 $ID".
While we're at it ,the string could include an indication about which QR code in which order this is such as "2 of 3".
Those information can be coded in the file name, but if one decides to print the QR code, the information needs to be in the picture or one has to fiddle around with libreoffice, building a document containing the info and the imported PNG:
Greetings
Marc