Sign a PDF Online

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How to sign a PDF document

Add your document to Lead PDF Editor

Open the Sign tool and draw, type, or upload an image of your e-signature

Save the signed document to your device

Recognized and certified by industry leaders

Why sign with our PDF signature tool

Kind to the environment

Signing electronically means going paperless — you shrink your environmental footprint and save time and resources at once.

An interface that feels familiar

The platform is designed around simplicity, so anyone can find their way around and e-sign PDF files — no technical expertise needed.

Three ways to sign a PDF online

Draw it, type it, or upload an image of it — the choice is yours, for a signature that feels personal.

Entirely online

Because Lead PDF Editor is a web platform, you can sign PDFs without downloading anything — saving you both space and time.

A secure signing workflow

HTTPS encryption protects your documents, so your data stays safe while you sign online.

Edit and sign in one go

Make your edits and add your signature in a single session — the Signature tool is built directly into the PDF editor.

Seal the deal with an e-signature

Our PDF signer makes finalizing documents secure and efficient. Draw, type, or upload your signature as an image — whichever you pick, the process stays simple and intuitive. Built for every user, Lead PDF Editor removes the need for printing and scanning, so your document ends up signed, legally valid, and ready within minutes.

Sign Your PDF Documents Online

Często zadawane pytania

Adding an electronic signature to a PDF is easy with our online tool. Here’s the process:

  1. Scroll to the top of this page.
  2. Click the + button, or drag and drop your file into the upload area.
  3. Pick how you want to create your signature — draw it, type it, or upload an image.
  4. Click ‘Create and Use’ to place it on the PDF, resize it, and confirm with the check mark.
  5. Happy with the result? Click ‘Done,’ pick a format, and hit ‘Download.’

Lead PDF Editor gives you three ways to create an electronic signature:

  1. Draw — hand-draw your signature on screen with a mouse, stylus, or finger.
  2. Type — enter your name or initials and the tool styles it as a signature.
  3. Upload an image — add a photo of your handwritten signature for extra authenticity.

The tool works on all major devices and platforms, so you can sign PDFs on iPhone, Mac, Windows laptop, and more.

An e-signature is a way of signing PDF files electronically, commonly used in legal, business, and personal contexts. It does the same job as a handwritten signature: it gives you a secure, verifiable way to show agreement or approval on contracts, forms, and other important documents — without any physical paperwork.

The two terms are often used interchangeably, and both let you sign documents online — but there’s an important distinction.

‘Electronic signature’ is the broad term: it covers any digital way of signing, from typing your name or initials to inserting an image of your handwritten signature, as well as more complex encryption-based methods.

A ‘digital signature’ is a more secure subset: it uses advanced encryption to verify the signer’s identity and guarantee the document hasn’t been altered, adding an extra layer of protection.

With Lead PDF Editor, you can use a simple electronic signature — no encryption involved — that is still legally binding.

When e-signing PDFs with an online tool, it’s generally wise to draw a signature that closely matches the one in your passport. Keeping them consistent helps confirm authenticity, especially for legal and official documents.

Document security is our top priority at Lead PDF Editor. Strong safeguards — including SSL certificates, Server-Side Encryption, and the Advanced Encryption Standard (AES) — keep your files secure, and our Google Safe Browsing verification helps shield you from malware and phishing.

With these measures working together, your documents stay protected at every step, so you can sign PDFs online with confidence.