Dropbox’s new software extensions let you easily edit files on the web

Dropbox has a new feature it hopes will make getting work done from within its cloud storage product even easier. Called Extensions, these third-party software plug-ins will let you perform basic tasks you’d normally need to launch a separate app or in-browser window for all within Dropbox on the web.Dropbox’s first suite of Extensions — with partners like Adobe, DocuSign, and Vimeo — will let you get the required digital signatures on a PDF and perform some light photo