MergePDFFilesFree
11. Upload
22. Configure
33. Download

Sign PDF Documents Online Free

Draw or type your signature and place it anywhere on your PDF pages instantly. 100% private, zero uploads, and legally valid.

Legally Compliant Client-Side Electronic Signatures

Sign lease agreements, non-disclosure agreements (NDAs), job offers, and client invoices without printing, scanning, or paying for expensive e-signature subscriptions.

Your handwritten or typed signature is stamped as a vector annotation directly into the PDF coordinate stream in local device memory, guaranteeing zero risk of signature theft.

Easy Step-by-Step Instructions

  1. Drop the PDF document you need to sign into the secure browser canvas.
  2. Draw your signature with your mouse/touchscreen or type your name for an elegant script.
  3. Position the signature precisely on the document line and click download to get your signed PDF.

100% Private In-Browser Execution Guarantee

MergePDFFilesFree processes files directly on your computer or phone using WebAssembly and client-side JavaScript. Your files are never uploaded to any remote server or stored in the cloud.

Frequently Asked Questions

Q.Is my digital signature saved or stored on any server?

No, never. Unlike traditional cloud e-signature portals that upload your biometric strokes to remote servers, MergePDFFilesFree processes your signature strictly inside your device's memory. Not a single pixel is transmitted externally.

Q.Are electronic signatures created here legally binding?

Yes. Electronic signatures generated through our tool comply with the US Electronic Signatures in Global and National Commerce (ESIGN) Act and the European Union eIDAS regulations for standard electronic signatures (SES).

Q.Can I add initials, dates, and checkmarks alongside my signature?

Yes! You can insert your signature, type dates, and add initials to any page of your document before saving.