Guides to signing documents online
Plain-English answers on e-signature law, how to sign and send documents, audit trails, and the terms worth knowing — written for people getting things signed.
These guides exist because most of what's written about electronic signatures is either legal boilerplate or a sales pitch. We try to be neither. Each article answers one practical question — is an e-signature actually binding, how do you send a document for signature, what does a Certificate of Completion really prove — in plain language, with the caveats stated up front instead of buried in a footnote.
They're written by Jose Chirinos, tuyaform's founder, who builds the product these articles describe. That cuts both ways: you get answers grounded in how signing actually works — unique signing links, audit trails, sealed PDFs — but you should know the author isn't a lawyer, and nothing here is legal advice. Where the law matters (ESIGN, UETA, eIDAS), the guides explain what the frameworks say and when it's worth consulting counsel.
Start with the law guides if you're deciding whether an e-signature will hold up, the how-tos if you have a document waiting to be signed, and the basics if you're new to the vocabulary.
E-signature law
Are Electronic Signatures Legally Binding? ESIGN, UETA & eIDAS
Electronic signatures are legally binding under the US ESIGN Act, UETA, and the EU's eIDAS Regulation — when a few key conditions are met. Here's what makes one enforceable, which documents are excluded, and how an audit trail proves it.
Guides6 min readWhat Is a Certificate of Completion and Audit Trail?
The signed PDF shows what was agreed; the Certificate of Completion and audit trail prove who agreed, when, and that nothing changed since. Here is what they record and why it matters in a dispute.
Guides7 min readWhat Is an Audit Trail for E-Signatures?
Every meaningful action in a signing request — sent, viewed, signed, sealed — lands in an append-only log with a timestamp, IP address and device. Here is what tuyaform records, why nobody can edit it, and how the log becomes evidence.
Guides7 min readHow-to
How to Sign a Document Online — Free, No Account
Someone sent you a document to sign? Here's exactly what to expect — from the secure link to the sealed PDF — and how to e-sign in your browser without creating an account.
Guides6 min readHow to Send a Document for Signature in 4 Steps
A practical, owner-side walkthrough of sending a document for e-signature — from building it and placing fields to routing signers and collecting a sealed, certified PDF.
Guides6 min readHow to Fill and Sign a PDF Online (Free)
That PDF in your inbox doesn't need a printer. Upload it free, drop signature and date fields exactly where they belong, sign it yourself or send it to others, and end up with a sealed, tamper-evident PDF plus a Certificate of Completion.
Guides6 min readHow to Write an NDA That Holds Its Shape
A clause-by-clause walk through a non-disclosure agreement: how to define the secret, when mutual beats one-way, how long the duty should survive, the terms people leave out, and the things an NDA was never going to fix.
Guides7 min readSequential vs. Parallel Signing: Which Routing Should You Use?
Signing order is one setting with real consequences: who gets emailed and when, what a waiting signer sees, which reminders are allowed, what a decline does to the whole request, and how many of your monthly emailed sends each mode consumes.
Guides7 min readE-signature basics
Electronic Signature vs Digital Signature: The Difference
People use "electronic signature" and "digital signature" interchangeably, but they describe different things — a legal category and a cryptographic technology. Here's the real difference.
Guides6 min readE-Signature Glossary: 18 Key Terms Explained
A plain-language reference to the terms every signer and sender runs into — the laws, the signature tiers, and the evidence that makes a signature stick.
Guides6 min readPhoto Release vs. Model Release: Which One Do You Need?
Three documents share these names and they do different jobs. Here is what a model release grants, what people mean by a photo release, where the commercial-versus-editorial line sits, and how minors, scope and revocation really work.
Guides7 min readForms
How to Create an Online Form (Free, Step by Step)
Good forms are planned, then built. Here's the full path — choosing the right field types, adding conditional logic, splitting pages, tuning the settings that matter, sharing your link — plus the one thing most form builders can't do: collect a signature.
Guides6 min readHow to Make a Quiz or Scored Survey Online (Free)
Turn an ordinary form into a quiz: mark the correct answers, give each question a point value, and every respondent sees their score the moment they finish — while you get averages, a score distribution, and per-question breakdowns.
Guides7 min readHow to Collect Signatures on an Online Form
Consent forms, registrations and acknowledgments need a signature from many people — not a contract ceremony for each one. Add a Signature field to a form, share a single link, and collect signed responses from any device. And when a document does carry real weight, know exactly when to switch to the full send-for-signature flow.
Guides6 min readForm Field Types Explained: Which to Use and When
The field type you pick decides what respondents see, which answers get accepted, and how your results chart. A working tour of all 29 tuyaform field types — text, choice, advanced and layout — with honest advice on picking the right one.
Guides7 min readReady to get your document signed?
Create a document, add signers, and send it for a legally binding signature in minutes — free, with no watermark on the signed PDF. The free plan includes 30 emailed invitations a month and shows a small 'secured by tuyaform' credit on the signing page, removable on paid plans.