The short answer: to sign a document online, upload it to an eSignature tool like OpenSign™, add a signature field, draw or type your signature, place it on the page, and download the signed file. The whole process takes about a minute and produces a legally binding signature.
Step 1 — Choose an eSignature tool
Pick a tool that's free, browser-based and legally compliant. OpenSign fits all three: unlimited free self-signing, no install, and ESIGN/UETA/eIDAS compliance.
Step 2 — Upload your document
Create a free account, then upload the PDF or document you need to sign. Choose Sign Yourself if you're the only signer, or Request Signatures to involve others.
Step 3 — Add your signature
Drag a signature field onto the page. Then create your signature by:
- Drawing it with your mouse, trackpad or finger,
- Typing your name in a signature font, or
- Uploading an image of your handwritten signature.
Step 4 — Add other fields (optional)
Place date, initials, checkbox or text fields wherever the document requires them. For documents with several signers, assign each field to the right person.
Step 5 — Finish and download
Click finish to seal the document. Download the signed PDF along with its certificate of completion, which records the audit trail — who signed, when and from where.
How to send a document for someone else to sign
- Choose Request Signatures and upload your document.
- Add each recipient's email.
- Place fields for each signer and set the order if needed.
- Send — recipients get a secure link and sign in their browser.
- You're notified as each person signs, and receive the completed file.
Is signing a document online legal?
Yes. Online signatures are legally binding under the ESIGN Act and UETA in the US and eIDAS in the EU, provided there's intent to sign, consent and an audit trail — all of which OpenSign captures automatically.
Tips for a smooth signing experience
- Use templates for documents you send often.
- Double-check signer email addresses before sending.
- Enable reminders so signatures don't stall.
- Keep the certificate of completion with your records.
Ready to try it? Create a free OpenSign account and start signing documents in minutes — no credit card required. Prefer to run it yourself? OpenSign is 100% open source on GitHub.