Sign PDF Online - Draw, Upload & Stamp Signatures
Draw, upload, or stamp your legal signature anywhere on PDF pages.
Choose File or Drag & Drop
Select Sign PDF input files
How to Use Sign PDF
Process your documents in 3 quick, private steps without installing any software.
Load PDF
Upload the contract, agreement, or form you need to sign.
Create Signature
Draw your signature on the smooth canvas or choose pen ink color.
Apply & Save
Place your signature on the target page and download your signed document.
Why Choose SwiftFileKit for Sign PDF?
Engineered for uncompromising privacy, lightning performance, and simplicity.
Strict Privacy
Your signature and personal contracts never leave your browser.
Smooth Canvas Drawing
Responsive digital ink drawing for natural, lifelike signatures.
Black & Blue Pen
Switch between professional black and blue pen ink colors.
Instant Execution
Download signed contracts immediately with zero waiting.
Frequently Asked Questions
Everything you need to know about Sign PDF and our client-side architecture.
Is signing PDF documents private and safe here?
Yes. Unlike cloud services, SwiftFileKit processes signatures entirely within your browser memory. Your signature is never sent over the internet.
Can I choose which page to sign?
Yes, you can select any target page number to stamp your signature.
Can I change the signature ink color?
Yes, you can switch between classic black and executive blue ink.
Does it add any watermarks?
Never. The downloaded PDF is completely clean and watermark-free.
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