How to Sign a PDF
Sign any PDF document online in four simple steps. Free to start, no credit card required.
Follow These 4 Simple Steps
Signing a PDF has never been easier.
Upload Your PDF
Drag and drop your PDF file into the signing tool or click to browse and select it from your device.
Create Your Signature
Draw, type, or upload your signature using the built-in signature creator.
Place Signature on Document
Click anywhere on the PDF to place your signature. Resize and position it exactly where needed.
Download or Share
Download the signed PDF to your device or share it via email directly from the platform.
Why Sign PDFs with SpaceSign?
Secure, fast, and fully compliant PDF signing.
Instant PDF Signing
Sign any PDF in seconds. No software installation, no waiting — just upload and sign.
Legally Binding
All signed PDFs comply with ESIGN Act, UETA, eIDAS, and PIPEDA regulations worldwide.
Secure Processing
Your PDFs are processed locally in the browser. Files are never uploaded to our servers.
Any Device, Anywhere
Sign PDFs on desktop, tablet, or mobile. Works in any modern web browser.
Share via Email
Send signed PDFs directly to recipients from the platform. No separate email needed.
Multiple Signatures
Add multiple signatures to a single PDF. Perfect for contracts requiring multiple parties.
PDF Signing FAQ
Common questions about signing PDF documents online with SpaceSign.
How do I sign a PDF document online?+
Upload your PDF to SpaceSign, click on the document where you want your signature, and SpaceSign will generate your digital signature. Download the signed PDF instantly.
Are PDF signatures created with SpaceSign legally binding?+
Yes, PDF signatures created with SpaceSign are legally binding under the ESIGN Act (US), eIDAS (EU), UETA, and PIPEDA (Canada). Every signed document includes a tamper-evident seal and audit trail.
Can multiple people sign the same PDF?+
Yes. SpaceSign supports multi-signer workflows where you can send a PDF to multiple recipients for sequential or parallel signing.
Is it free to sign a PDF?+
SpaceSign offers a free tier that allows you to sign PDF documents. Paid plans unlock additional features like AI contract analysis, bulk signing, and advanced integrations.
Ready to Sign Your PDF?
Join thousands of professionals who trust SpaceSign for secure PDF signing.
Sign a PDF Free