Sign PDF Online

Upload your PDF, add signatures from anyone, and download the fully signed document – all in your browser.

Sign your first PDF free. No subscription required. Signers don't need an account.

Legally binding e-signatures
GDPR compliant
No subscription
Works on any device

How to Sign a PDF Online

1

Upload Your PDF

Drag and drop your PDF or click to upload. Any size, any number of pages.

2

Add Signatures

Place signature fields, share the signing link. Signers don't need an account – they just open the link and sign.

3

Download Signed PDF

Get your signed PDF with a legally binding audit certificate. Pay just $1 per document.

CanUSign vs. Other PDF Signing Tools

See how CanUSign compares to popular alternatives for signing PDFs online.

FeatureCanUSignDocuSignSmallpdf
Price$1 per documentFrom $10/monthFree (limited) / from $12/mo
Subscription requiredNoYesYes (for unlimited)
Signer needs accountNoYesNo
Audit trailYesYesNo
Languages1040+24
PDF uploadUnlimited pagesYesYes

What People Sign with CanUSign

Business Contracts

Service agreements, sales contracts, partnership deals – sign any business contract in minutes.

NDAs & Confidentiality Agreements

Protect your ideas. Send an NDA, get it signed, and download the executed copy instantly.

Tax Forms & IRS Documents

Sign tax preparation forms, IRS authorizations, and financial documents from anywhere.

Rental & Sale Agreements

Lease agreements, sublease contracts, and property sale documents – signed without printing.

HR Documents

Employment contracts, SEPA mandates, data processing agreements, and onboarding paperwork.

Freelance Contracts

Project proposals, freelance agreements, and invoices – get paid faster with signed contracts.

Why Sign PDFs with CanUSign

No Printer Needed

Sign documents digitally – no printing, scanning, or mailing required.

Legally Valid Signatures

Electronic signatures are legally binding under eIDAS, ESIGN Act, and UETA.

Sign on Any Device

Works in your browser on desktop, tablet, or phone. No app to install.

Audit Certificate Included

Every signed document includes a detailed audit trail with timestamps and IP addresses.

Multiple Signers

Share a link and collect signatures from multiple parties – no accounts required.

Pay Per Use

Just $1 per signed document. No monthly fees, no subscription, no hidden costs.

Frequently Asked Questions

How do I sign a PDF online?

Upload your PDF to CanUSign, place signature fields where needed, and share the signing link. Signers open the link in their browser, draw or type their signature, and you can download the signed PDF immediately.

Is an electronic signature on a PDF legally valid?

Yes. Electronic signatures are legally binding in most countries under regulations like the EU's eIDAS Regulation, the US ESIGN Act, and UETA. CanUSign includes an audit certificate with every signed document for additional legal proof.

How much does it cost to sign a PDF?

CanUSign charges just $1 per signed document. There's no subscription, no monthly fee, and no hidden costs. Compare that to DocuSign (from $10/month) or Adobe Sign (from $12.99/month) – you only pay when you actually sign.

Can I sign a PDF on my phone?

Yes. CanUSign works entirely in your browser, so you can sign PDFs on any device – desktop, tablet, or smartphone. No app download required.

Do signers need an account?

No. Signers don't need to create an account or install anything. They simply open the signing link you share with them and sign directly in their browser.

What types of PDFs can I sign?

You can sign any PDF document – contracts, agreements, tax forms, rental documents, HR paperwork, NDAs, invoices, and more. There's no limit on file size or number of pages.

Ready to Sign Your PDF?

Upload your document and get it signed in minutes. No subscription – just $1 per document.