Sign Contracts Online — Fast, Private, Legally Valid

Add your legally binding signature to any contract PDF in seconds. No software to install, no document uploads to third-party servers. SigPDF processes everything in your browser so your contracts stay completely private.

No file uploadsLegally valid (ESIGN / eIDAS)No account requiredFrom €2.08/month

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Why Sign Contracts Online with SigPDF?

Contracts are the backbone of every business relationship. Whether you are signing a freelance agreement, a vendor contract, a partnership deal, or an employment offer, the ability to sign quickly and securely matters. Printing, signing by hand, scanning, and emailing back is slow and wasteful. SigPDF lets you skip all of that and sign any contract PDF directly in your browser.

With SigPDF you open the contract, draw or type your signature, place it on the signature line, and download the finished document. The entire process takes under a minute, and at €2.08/month you get unlimited signatures with no per-document fees.

Are Online Contract Signatures Legally Valid?

Yes. Electronic signatures on contracts are legally binding in virtually every major jurisdiction. The two most widely cited laws are:

  • United States — ESIGN Act (2000): The Electronic Signatures in Global and National Commerce Act establishes that an electronic signature carries the same legal weight as an ink signature for most commercial and consumer contracts.
  • European Union — eIDAS Regulation (2014): Under eIDAS, a simple electronic signature — such as one drawn or typed with SigPDF — cannot be denied legal effect solely because it is in electronic form (Article 25.1). This covers all EU and EEA member states.

Additional legislation in the UK (Electronic Communications Act 2000), Canada (PIPEDA and provincial electronic transaction statutes), and Australia (Electronic Transactions Act 1999) provides similar legal standing. A contract signed electronically with SigPDF is enforceable in court the same way a paper-and-ink contract is.

Types of Contracts You Can Sign

  • Freelance and consulting agreements
  • Employment offer letters and employment contracts
  • Vendor and supplier agreements
  • Non-disclosure agreements (NDAs)
  • Partnership and joint-venture agreements
  • Sales contracts and purchase orders
  • Service-level agreements (SLAs)
  • Independent contractor agreements

Privacy Matters When Signing Contracts

Contracts often contain sensitive information — pricing, intellectual property terms, compensation details, non-compete clauses, and confidential business strategies. When you use a cloud-based signing platform, your entire contract is uploaded to someone else's servers, stored in their database, and potentially accessible to their employees or to government requests.

SigPDF takes a fundamentally different approach. Your PDF is processed entirely inside your browser using client-side JavaScript. The file never leaves your device. No upload, no server-side storage, no third-party access.

How to Sign a Contract Online with SigPDF

  1. Open the contract PDF using the editor above — drag and drop or click to browse
  2. Create your signature by drawing with your mouse or finger, typing your name, or uploading a signature image
  3. Click on the contract page to place your signature on the signature line
  4. Add the date or any additional text fields if needed
  5. Download the signed contract — your signature is permanently embedded in the PDF

Frequently Asked Questions

Are online contract signatures legally valid?
Yes. Electronic signatures on contracts are legally binding in virtually every major jurisdiction. The ESIGN Act (US) establishes that an electronic signature carries the same legal weight as an ink signature for most commercial and consumer contracts. The eIDAS Regulation (EU) provides that a simple electronic signature cannot be denied legal effect solely because it is in electronic form.
What types of contracts can you sign with SigPDF?
SigPDF works with any PDF contract. Common use cases include freelance and consulting agreements, employment offer letters and employment contracts, vendor and supplier agreements, non-disclosure agreements (NDAs), partnership and joint-venture agreements, sales contracts and purchase orders, service-level agreements (SLAs), and independent contractor agreements.
How do you sign a contract online with SigPDF?
Open the contract PDF using the editor, create your signature by drawing with your mouse or finger, typing your name, or uploading a signature image. Click on the contract page to place your signature on the signature line. Add the date or any additional text fields if needed. Download the signed contract with your signature permanently embedded in the PDF.
How much does SigPDF cost for signing contracts?
SigPDF costs from €2.08/month billed annually, with unlimited document signatures. There are no per-document fees and no envelope limits. You can preview the result for free before subscribing — open a contract, place your signature, and see exactly how it looks before paying anything.
Can I sign contracts on my phone or tablet?
Yes. SigPDF works in any mobile browser on iPhone, iPad, and Android. Draw your signature with your finger, place it on the contract, and download the signed document — all without installing an app.
Does SigPDF require an account to sign a contract?
No account is required to open a PDF and preview your signature. A subscription is only required to download the signed document. You can verify SigPDF works for your document before committing to any payment.
What if both parties need to sign the contract?
SigPDF is designed for signing your own documents. After you sign and download, you send the PDF to the other party, who can open it in SigPDF (or any e-signature tool) to add their signature. SigPDF does not currently support automated multi-party signing workflows.

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