Best Free PDF Signers in 2026 (Honest Comparison)
An honest, no-BS comparison of the best free PDF signing tools in 2026. We tested them all — here's what actually works and what's just marketing.
Read more →PDF Signing Tips & Guides
Everything you need to know about signing PDFs online, electronic signatures, and digital document management.
Free DocuSign Alternative for Signing PDFs (2026)
Looking for a free alternative to DocuSign? Compare DocuSign pricing and features vs SigPDF for the common 'sign and return' use case. Save money without sacrificing functionality.
Read more →Are Electronic Signatures Legally Binding? (2026 Guide)
Find out whether electronic signatures are legally valid in your country. Covers US (ESIGN Act), EU (eIDAS), UK, and other jurisdictions with specific examples.
Read more →How to Digitally Sign a PDF for Free (Step-by-Step)
A step-by-step guide to digitally signing any PDF document for free. Learn the difference between digital and electronic signatures, and sign your first PDF in under 60 seconds.
Read more →How to Sign a PDF: 5 Free Methods in 2026
Learn how to sign a PDF document for free using five different methods — from browser-based tools to built-in OS features. Step-by-step guide with pros and cons.
Read more →PDF Signing Privacy: Why Where You Sign Matters
Not all PDF signing tools treat your documents the same. Learn the difference between server-side and browser-based processing, and why privacy matters when signing PDFs.
Read more →How to Sign an Employment Contract PDF Online
Starting a new job? Learn how to review and sign your employment contract PDF electronically. Covers what to check before signing and step-by-step instructions.
Read more →How to Sign an NDA (Non-Disclosure Agreement) PDF Online
Sign your NDA quickly and professionally with an electronic signature. Learn what to check before signing, and whether e-signed NDAs are enforceable.
Read more →How to Sign a PDF on Chromebook (Free, No App Needed)
Sign PDF documents on your Chromebook without installing any Android apps. Use a free browser-based tool that works directly in Chrome.
Read more →How Freelancers Sign Contracts Online (Free Guide)
A practical guide for freelancers on signing client contracts, proposals, and NDAs electronically. Fast, professional, and legally binding.
Read more →How to Sign a PDF on iPad (3 Easy Methods)
Sign PDF documents on your iPad using Safari, Apple Markup, or the Files app. Step-by-step guide with tips for using Apple Pencil and touch to create natural signatures.
Read more →How to Sign a PDF on Windows 10/11 (Free, No Software)
Sign PDF documents on Windows 10 or Windows 11 without installing any software. Three free methods including a browser-based tool, Adobe Acrobat Reader, and Microsoft Edge.
Read more →How to Sign a PDF Without Printing It
Stop printing PDFs just to sign them. Learn how to add your signature to any PDF digitally — save time, paper, and the trip to the scanner.
Read more →How to Sign a Rental Agreement PDF Online
Need to sign a lease or rental agreement PDF? Learn how to add your signature electronically, whether it's legally valid, and avoid common mistakes.
Read more →How to Sign Tax Forms (W-9, W-4) Online as PDF
Learn how to electronically sign tax forms like W-9, W-4, W-8BEN, and 1099 as PDFs. The IRS accepts e-signatures for most forms — here's how to do it correctly.
Read more →Add Signature to PDF Without Creating an Account
Tired of being forced to create accounts just to sign a PDF? Learn how to add a signature to any PDF without signing up, using SigPDF.io — free and private.
Read more →Electronic Signature vs Digital Signature — What's the Difference?
Understand the key differences between electronic signatures and digital signatures — their legal validity, security, use cases, and which one you actually need.
Read more →How to Sign a PDF on Mac — 3 Easy Methods (2025)
Learn 3 ways to sign a PDF on Mac in 2025: using Preview, SigPDF.io, and Adobe Acrobat. Step-by-step instructions with pros and cons of each method.
Read more →How to Sign a PDF Online Free in 2025 — No Account Needed
Learn how to sign a PDF online for free without creating an account. Step-by-step guide using SigPDF.io — fast, private, and entirely browser-based.
Read more →How to Sign a PDF on Your Phone (iPhone & Android)
Learn how to sign a PDF on your phone — iPhone or Android — using native tools and SigPDF.io. Quick methods with tips for clean mobile signatures.
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