Thanks HI-TEC99

I have followed religiously your guide posted in the link, through cleopatra I get:

generate-wallet.html.sig: Signature is valid
Signed on 2016-02-23 15:53 with unknown certificate 0x761F7D53D11591274A170B839277AD7136E1D9B6.

but, I don't have certificate of Canton Becker (the maker of bitcoin paperwallet) I only have trough his website these:
PGP Public Key ... (very long as you know  )
RSA Key ID: 36E1D9B6
Fingerprint: AB12 6777 451C 7A18 C172 3297 C525 F065 0B16 DF4B

How can I connect this certificate to him?