How to Sign a PDF Online Free — No Adobe, No DocuSign

When You Need to Sign a PDF

Leases, tax forms, school permission slips, contracts, NDAs — the modern world runs on signed PDFs. Most people reach for Adobe or DocuSign out of habit, but for placing a signature on a document, you do not need $15-22/month software.

How to Sign a PDF in Your Browser

1. Open the Sign PDF tool
2. Upload your PDF document
3. Choose your signature method: draw with mouse/finger, type your name in script, or upload a signature image
4. Click where you want the signature on the page
5. Resize and position as needed
6. Download the signed PDF

After Signing: Lock Your Document

After placing your signature, use our Flatten PDF tool to lock the signature in place. Flattening prevents anyone from moving, editing, or removing your signature. Then use Protect PDF to add a password if needed.