How-to Guides

Access step-by-step how-to guides designed to help you unlock the full potential of SignNow. From editing and eSigning PDFs to creating forms and streamlining workflows, our how-to instructions make it easy to master every feature.
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Learn what you can safely edit on a signed PDF, when it invalidates the signature, and the compliant way to make changes with SignNow.
Editor’s Picks, How-to Guides
How to edit a signed PDF: Options, limits, and best practices
Quick answer: Editing a signed PDF is possible, but only within limits: some changes leave the signature intact, and others invalidate it the moment you save. A digitally signed ...
A blue blog thumbnail image with graphic elements and text: How to add a signature to a PDF.
Editor’s Picks, How-to Guides
How to add a signature to a PDF: Type, draw, or upload
There are three ways to add a signature to a PDF in SignNow: type it out, draw it with a mouse or finger, or upload an image of a ...
A cover image for the SignNow blog article "How to sign as power of attorney?".
Editor’s Picks, How-to Guides
How to sign as power of attorney: The correct format for every document type
Signing as power of attorney (POA) requires three elements: the principal’s name, your name, and a word or phrase that identifies your role as agent. Think of it like ...
Learn how to add a digital signature to a PDF in four steps
Editor’s Picks, How-to Guides
How to add a digital signature to a PDF in 4 steps
Quick answer: You can add a digital signature to a PDF with a certificate-based tool or a cloud eSignature platform, and which one fits depends on whether you’re signing ...
Learn how to sign a Word document electronically without printing, scanning, or mailing it back, using native Word tools or a dedicated eSignature platform.
Editor’s Picks, How-to Guides
How to sign a Word document electronically without printing it
A Word document can be signed entirely on screen: with a scanned image of a handwritten signature, Word’s built-in Signature line, a certificate-based digital signature, or a dedicated eSignature ...
Learn how to sign a PDF electronically, e-sign PDF documents online, and compare free and paid electronic signature PDF tools with SignNow.
Editor’s Picks, How-to Guides
How to eSign PDF documents: Free and paid 2026 options
AI Digest Accepted globally, electronic signatures carry significant legal weight under frameworks like the US ESIGN Act and Europe’s eIDAS Regulation. With contemporary platforms, you can sign PDFs online ...
Discover how AI electronic signature workflows cut review time by 90%,
Editor’s Picks, How-to Guides
AI electronic signature workflows: 5 improvements changing how businesses sign in 2026
This guide explains the five core ways artificial intelligence is transforming AI electronic signature workflows, moving them from simple signing tools into intelligent, automated systems. After reading, you will ...
Learn how to use an IRS electronic signature to eSign IRS forms online.
Editor’s Picks, How-to Guides
IRS electronic signature: How to sign tax forms correctly in 2026
This guide explains exactly which IRS forms accept electronic signatures in 2026, which methods are legally compliant, and how to complete the signing process without triggering a rejection. Over ...
A blue blog cover image with text: How to create an eSignature online
Editor’s Picks, How-to Guides
How to create an electronic signature online
Need to sign a document without printing? Wondering how to create an electronic signature online without software downloads and other inconveniences? Luckily, there are signature makers available online, and ...
A beige and blue blog thumbnail image with text: How to electronically sign a lease agreement
Digital Evolution, Editor’s Picks, How-to Guides
How to sign a lease agreement electronically: complete guide for 2026
The ability to sign a lease agreement electronically is a standard part of modern workflows, not just a convenience feature. For property managers, brokers, and SMB operators, the priority ...
Learn what signing under duress means and how to prove it.
Editor’s Picks, How-to Guides, Productivity
Signing under duress in 2026: What it means and how to prove it
Signing a document under duress means that a person’s agreement to the terms was not given freely, but rather coerced through threats, intimidation, or undue pressure. Proving duress can ...
Learn how tech companies use eSignatures for smarter workflows in our new blog.
Digital Evolution, Editor’s Picks, How-to Guides
How tech companies leverage eSignatures for smarter workflows in 2026
Technology companies are increasingly adopting eSignature solutions to streamline their operations and improve efficiency. By eliminating the need for paper-based processes, eSignatures enable faster approvals, enhanced security, and seamless ...

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SignNow API for RentTango: Customizable workflow automation for residential leasing operations
RentTango uses the signNow eSignature solution via the API as an integral part of their own software platform. ...
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How the signNow API maintains security with HMAC
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Developers, Editor’s Picks
How to add signature fields and set signing roles using the signNow API
signNow’s signature fields allow for faster document approval collection from signers while significantly decreasing the chance of human error. Using predefined signature fields helps improve document accuracy. Every signer ...