7 Best Free PDF Signers in 2026 (Tested)

We Tested 8 Free PDF Signers So You Do Not Have To

There are dozens of "free" PDF signing tools online. But many are not really free — they add watermarks, limit features, or require subscriptions after a trial. We tested the top 8 options to find the genuinely free ones.

How We Tested

We evaluated each tool on:

• Speed: Time from upload to signed PDF download
• Privacy: Where your documents are processed
• Features: Signature options, multiple signers, templates
• Mobile: How well it works on phones
• Limits: What is actually free vs. paid
• Ease of use: Can a non-technical person figure it out?

The Results

1. SignQuick — Best Overall Free Option

Score: 9.5/10

• Speed: Under 30 seconds to sign
• Privacy: 100% client-side processing (documents never leave your browser)
• Free tier: 5 documents per month, no watermarks
• Mobile: Excellent responsive design
• Standout: No account required to sign

Try SignQuick free

2. Adobe Acrobat Reader

Score: 7/10

• Speed: 1-2 minutes (requires software)
• Privacy: Cloud-based processing
• Free tier: Basic signing only, no sending
• Mobile: Good native app
• Limitation: Must install software, upsells constantly

3. DocuSign Free Trial

Score: 6.5/10

• Speed: 2-3 minutes (account setup)
• Privacy: Cloud-based, US servers
• Free tier: 3 sends total (not per month — total)
• Mobile: Good app
• Limitation: Free trial expires, then $25/month

4. HelloSign (Dropbox Sign)

Score: 6/10

• Speed: 2 minutes
• Privacy: Cloud-based (Dropbox servers)
• Free tier: 3 documents per month
• Mobile: Decent web app
• Limitation: Dropbox account required

5. SmallPDF

Score: 5.5/10

• Speed: 1-2 minutes
• Privacy: Cloud-based (Swiss servers)
• Free tier: 2 documents per day
• Mobile: Good
• Limitation: Watermark on free tier, slow processing

6. PDF24

Score: 5/10

• Speed: 2-3 minutes
• Privacy: German servers
• Free tier: Unlimited but ad-supported
• Mobile: Basic
• Limitation: Cluttered interface, lots of ads

7. ILovePDF

Score: 5/10

• Speed: 1-2 minutes
• Privacy: Cloud-based (Spanish servers)
• Free tier: Limited features
• Mobile: Adequate
• Limitation: Upload your documents to their servers

8. Preview (macOS only)

Score: 4.5/10

• Speed: Fast (native app)
• Privacy: Local processing
• Free tier: Unlimited
• Mobile: iOS only
• Limitation: Mac only, no audit trail, basic annotations only

Comparison Table

What to Look For

Privacy Matters

Most free tools upload your documents to their servers for processing. That means your contracts, NDAs, and personal documents pass through third-party infrastructure. Client-side tools like SignQuick process everything in your browser — your files never leave your device.

"Free" Is Not Always Free

Watch out for:

• Watermarks on signed documents
• Limited number of free signatures (ever, not per month)
• Features locked behind registration
• Free trials that auto-convert to paid subscriptions

Legally Binding

Not all signing tools generate proper audit trails. Without an audit trail, your e-signature may not hold up if challenged. Look for tools that record:

• Timestamp of signing
• Signer identification
• Document integrity hash

Our Recommendation

For most people, SignQuick is the best free option because:

• No account needed
• Documents stay in your browser (privacy)
• 5 free documents per month (resets monthly)
• Full audit trail
• Works perfectly on mobile
• No watermarks

Sign your first PDF free — takes 30 seconds.

FAQ

What is the best truly free PDF signer with no hidden costs?

After testing 8 tools, SignQuick is the best genuinely free PDF signer. It offers 3 free documents per month with no watermarks, no account required, and full audit trails. Your documents are processed entirely in your browser — they never leave your device.

Is a free electronic signature legally binding?

Yes. Free electronic signatures from tools like SignQuick are fully legally binding under the ESIGN Act (US), eIDAS (EU), and equivalent laws in 180+ countries. The key requirement is an audit trail proving who signed, when, and that the document was not altered afterward.

Can I sign a PDF without creating an account?

Yes. SignQuick and a few other tools let you sign PDFs immediately without any account creation. Simply upload your PDF, draw or type your signature, place it on the document, and download the signed file — all in under 30 seconds.

Are free PDF signers safe and private?

It depends on the tool. Most free PDF signers upload your documents to their servers for processing. SignQuick is an exception — it processes documents 100% client-side in your browser, meaning your files never leave your device. Always check the privacy policy before uploading sensitive documents.

What is the difference between a free PDF signer and DocuSign?

Free PDF signers like SignQuick handle basic signing needs — upload, sign, download. DocuSign ($25+/month) adds advanced workflow features like sequential signing, templates, and CRM integrations. For most individuals and small businesses, a free tool covers 90% of signing needs.