Electronic signature software lets you send a document to someone, have them sign it in their browser, and get back a legally binding, tamper-evident record, with no printing, mailing, or scanning. Nearly every electronic signature program on the market handles that basic job. The differences between electronic signature platforms are in the audit trail behind the signature, how much friction the signer runs into, and whether the pricing model matches how often you send documents. Below is what to check before you commit to one.
What every legitimate electronic signature tool needs
Regardless of brand, a serious electronic signature service should give you all of the following on every completed document:
- A tamper-evident audit trail. At minimum: each signer's name, email, IP address, and timestamp, plus a cryptographic hash (commonly SHA-256) of the final signed file so any later alteration is detectable. See what makes an audit trail court-admissible for the full breakdown.
- A Certificate of Completion. A standalone record summarizing who signed what and when, independent of the signed document itself.
- ESIGN and UETA compliance (US). The signature process needs to demonstrate the signer's intent to sign, consent to do business electronically, and association of the signature with the record. Those are the elements that make an e-signature legally binding under U.S. federal and state law.
- A signer experience that doesn't require an account. Making your counterparty create an account before they can sign is the biggest single cause of abandoned signature requests.
Feature by feature: what to compare
| Feature | Why it matters | Questions to ask |
|---|---|---|
| Audit trail depth | Evidence if a signature is ever disputed | Is it a hash of the file, or only a log entry? Is IP address captured? |
| Signer experience | Completion rate | Does the signer need an account? Does it work on a phone browser? |
| Templates | Speed on repeat documents | How many templates on your plan? Is field placement saved? |
| Bulk send | Sending the same form to many people | Can you upload a CSV of recipients, or is it one at a time? |
| API / developer access | Embedding signing into your own product or workflow | Is there a REST API? Is it on every plan or gated to a top tier? |
| Retention | How long you can retrieve completed documents | 30 days? A year? Longer plans usually cost more. |
| Pricing model | Whether the cost tracks how you actually work | Per seat, per envelope, or pay-as-you-go? See below. |
Pricing models, decoded
Whether an electronic signature tool feels cheap or expensive depends less on the sticker price than on whether the pricing model matches your sending pattern.
- Per-seat. You pay for each person who can send documents, regardless of volume. This favors teams where several people send regularly and volume per person is high. It penalizes small teams where one person sends and the others need occasional access, since some platforms enforce a minimum seat count per plan.
- Per-envelope. You pay per document (or "envelope") sent, sometimes bundled into a monthly allotment. This tracks volume more directly but can get expensive fast if you send a lot, and some platforms charge per envelope even for very short documents.
- Pay-as-you-go / hybrid. A free or low-cost tier covers a baseline number of documents, with metered charges (often per page) for anything beyond it, and no expiration on unused credit. This fits irregular or seasonal volume best. You aren't paying for headroom you don't use most months, or locked into a seat you don't need.
No model is better across the board. The right one depends on your volume and the shape of your team. A five-person sales team sending dozens of contracts weekly is usually better served by a per-seat plan with strong CRM integration. A solo contractor sending three or four agreements a month is usually overpaying on a per-seat plan built for teams.
How to choose by business size and volume
| Profile | What to prioritize |
|---|---|
| Solo owner-operator, low/irregular volume | Pay-as-you-go pricing with no seat minimum; simple upload-and-send flow over workflow depth |
| Small team (2–10), moderate volume | A few shared templates, bulk send for repeat forms, retention long enough to cover a dispute window |
| Sales-driven team building proposals/quotes | A document-automation suite with e-signature built in, not a signature-only tool (see the note below) |
| Regulated or high-compliance industry | Verified certifications (SOC 2, ISO 27001, HIPAA BAA support) before anything else; don't take marketing copy's word for it |
| Developer embedding signing into a product | API access on an affordable tier, clear docs, and (increasingly) MCP or AI-assistant support for automated sending |
Some well-known electronic signature tools are really document-automation suites with signing as one feature: proposal builders with a content library, pricing tables, and CRM sync. That's the right tool if you're producing priced sales documents regularly. It's the wrong tool, and usually the more expensive one, if all you need is to get an existing PDF signed. See our comparisons of DocuSign, Dropbox Sign, and PandaDoc alternatives for where each sits on that spectrum.
Red flags to watch for
- No published pricing. If you have to talk to sales to see a number, budget carefully before assuming it fits.
- "Free trial" marketed as a free plan. A 14-day trial isn't a free tier. You can't test the fit on your own documents without a clock running.
- Vague audit trail language. "Secure and legally binding" without specifics on hash, IP capture, or timestamps is a marketing claim. It isn't evidence.
- Certifications claimed without detail. If a vendor claims SOC 2 or HIPAA support, ask for the report or BAA. Don't infer it from a badge on the pricing page.
- Signers required to create an account. This is the most common source of abandoned signatures and is rarely necessary for basic signing.
Are electronic signatures legally binding?
In the United States, yes. Under the federal ESIGN Act and the state-level Uniform Electronic Transactions Act (UETA), a properly executed electronic signature carries the same legal weight as a wet-ink signature for most contracts, provided the process demonstrates intent to sign, consent to do business electronically, and a clear association between the signature and the record. There are narrow exceptions (wills, certain court documents, and a handful of other categories), so check the specifics for anything unusual. See are electronic signatures legally binding? for the full walkthrough. Also note that a "digital signature" in the strict, certificate-based cryptographic sense is a different (and narrower) technology than the electronic signatures most businesses use day to day. If that distinction matters for your use case, see electronic vs. digital signature.
Where GSD fits in this picture
GSD is a browser-based tool focused on signing. You upload a PDF or Word document, its AI places signature, date, and text fields automatically, you review and send, and signers sign in their browser with no account required. Every completed document includes a tamper-evident audit trail (SHA-256 hash, signer IPs, timestamps) and a Certificate of Completion. Pricing is pay-as-you-go: a Free plan covers 5 documents a month with no card required, then metered credits ($0.05/page for the first 10 pages, $0.01/page after, credits that never expire) cover overflow. Paid tiers (Pro at $12/month and Business at $49/month) add unlimited documents, templates, bulk CSV send, and payment collection. Completed-document retention runs 30 days on Free, 1 year on Pro, and 7 years on Business. See full details on the pricing page.
Where GSD isn't the fit: it has no native mobile app (any mobile browser works) and no Word or Google Docs add-in, it doesn't build proposals or manage a content library, and it does not hold SOC 2 or ISO 27001 certification or sign HIPAA BAAs. Check the security page before relying on it for regulated document flows. If your volume is irregular, your team is small, and you mainly need existing documents signed rather than built, it's worth a look. For deeper comparisons, see DocuSign alternatives, Dropbox Sign alternatives, and PandaDoc alternatives, or read our broader roundup of the best e-signature software for small business in 2026.
Frequently asked questions
What's the difference between an electronic signature program and a digital signature?
"Electronic signature" is the broad legal category covering any electronic method of signing with demonstrated intent, such as typed names, drawn signatures, or click-to-sign. "Digital signature" more precisely refers to certificate-based cryptographic signatures (PKI). Most business e-signature tools, including GSD, provide electronic signatures with a hashed audit trail rather than certificate-based digital signatures.
How much does electronic signature software cost?
It varies widely by pricing model. Per-seat plans commonly range from roughly $10–$50 per user per month depending on features; pay-as-you-go tools can cost nothing for low volume and a few cents per page beyond a free allotment. Match the model to your volume before comparing sticker prices.
Do I need an API for electronic signatures?
Only if you're embedding signing into your own software or automating sends from another system. Most small businesses send documents manually through a web app and never touch the API.
Is a free electronic signature tool good enough for a small business?
Often yes, if your volume is low and the free tier doesn't cut corners on the audit trail or force signers to create accounts. Check retention length too, since free tiers sometimes retain completed documents for a shorter window.
What should I check before trusting an e-signature tool with a contract?
Confirm it's ESIGN/UETA compliant, verify the audit trail captures a document hash and IP addresses (a log line alone isn't enough), and if you're in a regulated industry, verify any compliance certifications directly rather than trusting a badge on the pricing page.