Multinational software firm Citrix Systems announced today it has bought RightSignature, a Web-based signature capture and document management service based in Santa Barbara. Terms of the deal were not disclosed.

Citrix is headquartered in Florida but also runs major operation out of Goleta, where it previously acquired Expertcity, the maker of its popular GoToMeeting and GoToMyPC products. As of today, the RightSignature team has also joined the ranks at Citrix.

RightSignature’s e-signing service has been part of Citrix’s ShareFile platform since last year, and it has been “hugely popular,” Jesse Lipson, general manager of Citrix’s Documents Cloud, said in a press release.

“Having an easy, streamlined solution to handle secure file storage, syncing, sharing and signing all at once is not only highly desirable but absolutely critical to many of the key industries Citrix serves,” Lipson said. “We are looking forward to taking this integration a step further to deliver a complete, integrated end-to-end document workflow solution.”

RightSignature was spun out of Portland-based Burnside Digital, a maker of web-based apps for financial institutions, in 2009 by a group of employees that was tired of standing around the fax machine at odd hours waiting for signatures from international clients.

In 2012, company CEO Daryl Bernstein told the Business Times that, aside from its marquee signature technology, what keeps business customers coming back are the tools for creating and managing documents.

“Usually, you prepare your documents, send them out, and they go into a black hole,” Bernstein said. “Everybody is waiting on this stage. We add a new level of visibility.”

In a statement released yesterday, Bernstein said Citrix will be the “perfect home” for accelerating RightSignature’s growth.

“We started with a simple idea: to enable easy online document signing,” Bernstein said. “Now, almost six years later, professionals and businesses — in almost every industry and across five continents — sign millions of documents every year using RightSignature.”