The best electronic signature software for ecommerce
Ecommerce signing splits two ways: embedding a signature into your own checkout or onboarding, and pushing supplier and partner contracts at volume. We reweighted toward the API, integrations and value at scale, then ranked the five that fit an online business.
Reviewed by M. HALLORAN·Updated MARCH 2026·How we vet
Tools compared5
Criteria weighted5
Last reviewedJune 2026
Paid placements0
How we ranked the field
Scored on the same five criteria as our main ranking, then reweighted for the API and embedding, integrations, value at volume and the templates that speed repeat agreements. See the full rubric →
API and embedding25%
Integrations20%
Ease of use20%
Value at volume20%
Templates15%
01
RANK
★ Editor’s Choice
Dropbox Sign
Best for embedding signing in your flow
For an online business, the signature usually has to happen inside your own product or onboarding flow, and that is where Dropbox Sign, with its HelloSign API heritage, is hard to beat: clean embedded signing, strong documentation and unlimited requests on a fair plan. It is lighter on proposals and enterprise governance, but for embedding a signature into a store or app it leads.
Ecommerce runs on supplier agreements, dropship contracts and partner deals, and PandaDoc handles those as branded documents with signatures and CRM sync in one place. The API and templates speed up repeat agreements. If all you need is an embedded signature, it is more suite than you will use.
When a wholesale buyer or partner expects a name they recognize on the contract, DocuSign delivers, with a strong API and the deepest integration catalog for tying signing into your stack. Envelope limits and add on fees are the watch items as order volume and contract count climb.
For a store sending a high volume of routine agreements, SignNow keeps the per seat cost low while offering bulk send, workflow automation and a capable API. The interface is plainer than Dropbox Sign and the yearly signature cap is worth tracking as you scale.
If your supplier and partner agreements are already PDFs, Acrobat Sign signs them in place with enterprise reach and compliance. The interface is heavier than the signing first tools and licensing ties into the wider Acrobat lineup, which is the cost of staying in one ecosystem.