Sign a PDF online
Add your signature to contracts, forms and letters without printing or scanning. Draw it with a mouse or finger, type it in a handwriting style, or upload a photo of your signature.
- No upload: 100% in your browser
- No sign-up
- Free to use
PDF, JPG or PNG · processed on your device, never uploaded
How to sign PDF
It takes less than a minute with PDFHeron.
Open the document
Drop the PDF you need to sign onto this page.
Create your signature
Draw it, type your name in a script style, or upload an image. A white background is removed automatically.
Place it
Drag the signature onto the signature line and resize it. Add a date with the Text tool.
Save and send
Download the signed PDF and send it on.
Reuse your signature
Tick “Save this signature” and it’s remembered in your browser, ready to place with one click next time. It’s stored only on your device.
Private signing
Because nothing is uploaded, your signature image and the documents you sign stay on your computer. Signatures are saved as transparent images at high resolution so they print crisply.
Why use PDFHeron to sign PDF?
Private by design
PDFHeron processes files on your device. No uploads, no cloud copies, no one else ever sees your documents.
Real editing
Change existing text and delete content from the file itself, not just paint boxes on top of it.
Instant & offline-ready
No queues or upload waits. Big documents open in seconds, and editing keeps working without a connection.
True redaction
Redacted areas are permanently removed from saved PDFs, so hidden text can’t be copied back out.
Standard PDF output
Saved files are regular PDFs with selectable text that open in Acrobat, Preview, Chrome and every other reader.
Free, or $2 once
Use every tool for free. Remove the footer forever with a one-time Pro license, with no subscription.
Sign PDF: FAQ
Is an electronic signature legally binding?
In many countries a signature image on a document is accepted for everyday agreements, but requirements vary. For regulated documents, check what your recipient or local law requires; some need a certificate-based digital signature, which PDFHeron does not create.
Can I sign on my phone?
Yes. You can draw your signature with your finger on a touch screen.
Can I add initials or a date?
Yes. Create a second signature for initials, and use the Text tool to type the date.
Edit your PDF now. It’s free
No sign-up, no upload, no waiting. Open a file and start editing in seconds.
Open the PDF editor