How to sign a PDF electronically
You don't need Adobe Acrobat or any desktop software to sign a PDF. Upload it to SignOwl, draw or type your signature, and get a signed copy with a court-grade audit trail — all from your browser.
Upload your PDF
Drag and drop any PDF into SignOwl. No file size limits on paid plans, up to 10MB on free. Multi-page documents work out of the box.
Add signature fields
Use AI field detection to auto-place signature, date, and initial fields — or drag them manually. Assign fields to yourself or other signers.
Sign the document
Click a signature field and draw your signature, type your name (choose from handwriting fonts), or upload a signature image. Your signature is applied instantly.
Download or send
If you're the only signer, download your signed PDF immediately. If others need to sign, enter their email and send. They sign via a link — no account needed.
Tips
- Use AI field detection to save time on multi-page contracts
- Your drawn signature is saved for reuse on future documents
- The signed PDF includes a PAdES-B-B digital signature for court-grade validity
- Recipients can sign from any device — phone, tablet, or desktop
Frequently asked questions
Is signing a PDF online legally binding?
Yes. Electronic signatures on PDFs are legally binding under the ESIGN Act (US), UETA (49 states), and eIDAS (EU). SignOwl adds a PAdES-B-B digital signature and full audit trail for maximum enforceability.
Do I need Adobe Acrobat to sign a PDF?
No. SignOwl works entirely in your browser. Upload any PDF, sign it, and download the signed copy — no software installation required.
Can I sign a PDF on my phone?
Yes. SignOwl's signing experience works on any device with a browser. Draw your signature with your finger or type it.
Is it free to sign a PDF?
SignOwl's free plan includes 2 documents. For unlimited signing, Pro starts at $9/month.
Ready to send your first document?
Upload a PDF, add signature fields, and send — your signers get a beautiful page on any device. No accounts, no apps, no friction.
Start free — no card needed