Why the Passport Office wants ink
HM Passport Office’s caseworkers accept an unenrolled deed poll when it’s signed in your old and new names, signed by at least one witness, dated and made at the time, and when every signature is a wet signature. If a signature isn’t, they ask for a new deed poll. HM Passport Office: evidence to change a name
A wet signature just means a real one, in ink, on paper. The DVLA wants your original documents too, not photocopies, so a printed deed poll signed in ink is the one to send. GOV.UK: change the name on your driving licence
Ordering online is fine. HM Passport Office tells its caseworkers not to make inappropriate comments about deed polls made online or the companies that provide them. What matters is how yours is signed and witnessed.