E-Signature - trying to get my head around that

I'm part of a small organization that creates contracts every once in a while, say about five per week, that need to be initialled on every page and signed on the last page by the individual the contract is for (typically a different person for each contract) and also initialled and signed by up to four executives of the organization.

Contracts are either pdf or Word documents.

Until now we have either printed the contract, signed it, scanned it and sent it to the next executive (executives are in Canada, US, Austria and Australia) or, as one step up, embedded the signature in the pdf or Word document electronically.

Suggestion has been made to use an E-Signature in the future.

However when I look up E-signature options in google, I get everything from how to do this "free" on the Mac via Preview and a MacBook camera (essentially embedding the signatures the way we do now) to signing up to some service to the tune of $25 to $35 per user per month which ends up at $1200 or more per year for the four executives.

I assume those different options of "E-Signatures" are not identical.

Is anyone using E-Signatures and what would be the best and most economical way to go in our situation.

via ehMac.ca http://ift.tt/2gxyQiY