English Copy detection pattern Cited by user Factfox on 22 Jan 2021 A copy detection pattern (CDP), secure graphic or graphical code is a small random or pseudo-random digital image which is printed on documents, labels or products for…
English Security printing Cited by user Factfox on 14 Sep 2020 Security printing is the field of the printing industry that deals with the printing of items such as banknotes, cheques, passports, tamper-evident labels, security tapes…