How to Digitally Sign a PDF in 2026
550K people search this each month. Most hit paywalls or watermarks. You don't have to. We'll show you the free methods that work today, and why teams are switching to self-hosted signing.
Three problems with most PDF signing tools
Watermarks on your signed PDFs. That tells everyone you couldn't afford the $9.99/month tier.
Per-signature fees. Adobe charges per document on the free tier. DocuSign charges per envelope. Sejda limits you to 5 documents monthly. You stop signing when you hit the cap.
Vendor lock-in. You can't export your signing workflows. Your audit trails live in someone else's servers, subject to their downtime, their price hikes, their data policies.
There's a better way.
Method 1: Adobe Acrobat Fill & Sign (Instant, No Setup)
Best for: A single contract, right now. No account setup.
- Go to adobe.com/acrobat/tools/fillsign
- Upload your PDF
- Click where you want your signature
- Draw, type, or upload an image
- Download
No watermark on free tier anymore (Adobe removed it in 2024). Limitation: Adobe restricts free users to 5 documents per month. If you sign more, you hit a paywall.
Method 2: Online Signing Tools (Free, No Installation)
Best for: Teams or individuals who sign 10+ documents monthly.
Tools like Sejda, iLovePDF, and PDF24 let you sign instantly in your browser. No software download. No account required (though you can create one). Sejda limits free users to 5 documents monthly. PDF24 has no limits but adds watermarks unless you pay. iLovePDF adds watermarks on the free tier but their web interface is cleaner than Adobe's.
Method 3: Browser-Native Signing (Fastest, Windows/Mac)
Best for: Quick signatures on desktop. Fastest option.
Microsoft Edge has a built-in "Draw" tool. Open a PDF in Edge, press Ctrl+Shift+X, draw your signature, and save. No upload. No account. Stays local. Works only in Edge on Windows and macOS. Not available on mobile.
Step-by-Step: How to Digitally Sign Any PDF
The process is the same whether you use Adobe, Sejda, or self-hosted signing. Here's what happens.
Choose Your App
Select an app to get started.
Upload or open your PDF
Select the document from your device or paste a URL. No file size limits on most tools.
Click and place your signature
Click where you want the signature field. Drag to resize. Position it anywhere on the page.
Create your signature
Draw it, type your name, or upload an image. Most tools remember your signature for the next document.
Download or send
Save to your computer, or send a signing request to others. Some tools generate audit trails automatically.
Why teams are leaving SaaS for self-hosted DocuSeal
Same features. Different economics.
Pricing as of May 2026. SaaS costs based on DocuSign, Adobe Sign, and Sejda public pricing.
Why Self-Hosted PDF Signing Wins
Most people pick Adobe or Sejda because they don't know how to digitally sign a PDF for free, without per-signature fees or watermarks.
Unlimited signatures, one price
No per-document caps. No per-signature fees. No surprise bills. Sign 50 contracts next month, it costs the same. Deploy on a Medium server (EUR40/mo) and sign forever. Compare that to Sejda's 5-document free limit or Adobe's $40/user/month for teams.
No watermarks, no tracking, no lock-in
Your signed PDFs stay yours. Not watermarked with 'signed with Sejda.' Not tracked by Adobe's servers. Not trapped in a vendor's platform. You host the code on your own infrastructure. You own the signing keys. You decide who sees the audit trail.
GDPR-compliant by default
Documents stored in Germany. No US data centers. No transfers to third parties. Contracts stay in the EU if that matters for your industry (healthcare, finance, legal). Self-hosted means you control where your data lives.
Built for teams who need reliability
Savings per year, running DocuSeal on Medium instead of Sejda or Adobe for a team of 3
Sejda: EUR5/mo x 3 users x 12 months = EUR180. Adobe Sign: EUR10/user/mo x 3 x 12 = EUR360. DocuSeal Medium: EUR40/mo x 12 = EUR480. And unlimited signatures.
Built for compliance, not paywalls
Teams managing contracts need to trust their signing tool. DocuSeal was built for that.
GDPR Compliant
German hosting, EU data residency, no US transfer. Your contracts stay in the EU.
Open-Source Auditable
11.7K developers have reviewed the code on GitHub. You can too. No black-box algorithms.
eIDAS & QeS Support
Legally-binding qualified electronic signatures. Required for government contracts across the EU.
HIPAA & GDPR Trails
Audit logs customizable for compliance audits. Healthcare and finance teams use it.
Questions about digital signatures
We answer the questions people actually ask before they start signing.
A digital signature uses cryptographic certificates to prove authenticity and non-repudiation. It's legally binding under eIDAS in the EU and UETA in the US. An electronic signature is any mark that looks like consent: a typed name, a drawn signature, an image. Both are enforceable in contracts, but digital signatures add cryptographic proof that the document hasn't changed since signing. DocuSeal supports both. Most teams start with electronic (faster, simpler), then add digital signatures for regulated contracts (healthcare, legal, finance).
Start signing today
Pick the plan that fits. All include GDPR-compliant German hosting, automatic updates, and 24/7 monitoring.
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Deploy DocuSeal in 3 minutes
No credit card. No setup wizard. Just pick a server and sign.