The phrase "to ink the deal" means to officially or formally finalize an agreement or contract by signing it in ink. It indicates that all parties involved have reached an agreement and are ready to proceed with the deal. Full definition
Your Mercedes - Benz EV may soon wirelessly charge just like a Formula - E car, with Daimler inking a deal with Qualcomm around high - tech car gadgetry. (slashgear.com)
And just to show it's not just inking deals with these old - school tech businesses, it has also partnered with Box and electronic document startup DocuSign to make its iPad more attractive to businesses. (fortune.com)
Amazon also recently inked a deal with T - Series, India's largest music label, to make its catalog of over 150,000 songs available on Prime Music. (androidcentral.com)