For iPhone users, one of the easiest ways to sign a PDF document is to use the tools built into the Mail app. When you receive an attachment, tap to download it and then tap again to open it. You'll see a marker icon in bottom navigation. Tap it and you'll see tools appear at ...
including OneSpan Sign (formerly eSignLive),DocuSign, Adobe Sign, SignNow, HelloSign, SignEasy, DropBox, BoxSign, RightSignature, eSign Genie, eversign, and PandaDoc. With so many options, how do you stack up all the vendors to determine which solution is best...