Suggestions for e-signing contracts?

Hi, I have a web development business, and I'm looking for an easy way for my clients/prospects to sign contracts digitally.Currently, when I have a client proposal, I'll create the client contract as PDF document, and then just email the client a nice message and attach the PDF for them to review and sign. However, the client then needs to print off the document, sign it, and then either scan it or take a photo to send back to me, unless they have some sort of method of digitally signing.I have been exploring e-sign options to make that easier, and something I'm not quite happy with, is it seems like all the options I've found send out the document via their platform. So, instead of coming from me, the email the client gets comes from the e-sign platform, is in their format, and that kind of thing.I think my ideal state would be more like I could upload the PDF contract to the e-sign platform and indicate where the client needs to sign, but then instead of sending out the contract from that platform directly, I'd rather draft a personal email in Gmail so it comes right from me, and have some sort of custom link that takes the client right to the e-sign platform, where they can review the document and either click to sign, or, create a digital signature with their finger, mouse, stylus, whatever.Any reference points or suggestions at all? Thanks in advance! see hubwealthy.com/wealthy