With over 1.4 million paying customers, DocuSign (DOCU 3.17%) is the largest e-signature company in the world. It's estimated to hold a nearly 68% share of the e-signing market.Even so, its stock is currently well below the 52-week high of $66.98 achieved last March, and down from the more than $60 per share reached in January. The current dip in share price could be a buying opportunity, or a signal to avoid the company. To know which, you have to examine what's going on with DocuSign in more detail.And no ...