Shares of Docusign Inc. (NASDAQ: DOCU) surged nearly 18% on Friday, after the electronic-signature service reported strong fourth-quarter earnings that beat expectations, partially driven by its new artificial intelligence-enabled platform, which it introduced last year.The e-signature company reported earnings of 86 cents per share, beating forecasts of 85 cents, with revenue coming in at $776 million, $15 million over forecasts for the fourth quarter of fiscal 2025, ending January 31.Fiscal 2025 was a transformative year for Docusign, CEO Allan Thygesen said in an earnings statement. We launched Docusign IAM, our AI-powered agreement management platform, which is driving rapid traction with customers . . . Were well-positioned to pursue the significant opportunity ahead.Docusigns Intelligent Agreement Management (IAM) is an AI-powered platform that enables businesses to create, manage, and gain insights from their agreements in a full-suite, end-to-end platform, resulting in faster workflows and minimized risks. DocuSignAI uses both traditional AI toanalyze existing data and content and generative AIto create new content, such as text, based on patterns learned from existing data.In his earnings remarks, Thygesen said IAM has quickly become the fastest-growing new product in Docusigns history, and the company expects IAM to account for low double-digits of the companys total growth by Q4.Its tremendously valuable, he told CNBC on Friday. Its opening a treasure trove of data . . . Were seeing excellent pickup.Another good sign for the company: Docusign is collaborating with Microsoft and Google, which are two of its biggest partners. Both integrate Docusign deeply into their office suites.Docusigns customers number 1.6 million, and 1 billion people have used the service in more than 180 countries, including 95% of Fortune 500 companies. The service is available in 44 languages for document signers and 14 languages for those sending documents, according to the companys website.