Ключевые слова: above, agreement, application, background, bank, business, closeup, contract, data, deal, design, device, digital, display, document, electronic, finance, financial, hand, handwriting, identification, identity, internet, male, man, manager, mobile, modern, network, office, online, person, phone, professional, proof, screen, security, sign, signature, smartphone, table, technology, transaction, using, view, web, wooden, working,