Don't recommend to export unnecessary and redundant data.

The public key data is contained in the private key data.
Using --export-options export-minimal excludes signatures from other persons

Thanks to Peter Lebbing for pointing this out.

Author: g-v-egidy

README.md

@@ -8,8 +8,7 @@ Designed to backup ASCII-armored GnuPG and SSH key files and ciphertext.
 ###### Backup
 
 ```
-gpg2 --armor --export "User Name" >key.asc
-gpg2 --armor --export-secret-key "User Name" >>key.asc
+gpg2 --armor --export-options export-minimal --export-secret-key "User Name" >key.asc
 paperbackup.py key.asc
 paperrestore.sh key.asc.pdf | diff key.asc -
 lpr key.asc.pdf