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Custom layout templates · Digital cryptographic signatures · Unlimited page sizes · Priority processing

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Draw, Type, or Upload

Draw with touch/mouse, type your name using beautiful cursive fonts, or scan your physical signature.

Multi-page Annotations

Easily navigate through pages and place your signature, initials, date stamps, or initials.

100% Secure & Private

Your documents never touch a server. All canvas drawing and merging run locally on your device.

Sign PDF Online Free
Secure Electronic Signatures

Create, place, and embed electronic signatures on your PDF agreements, invoices, and contracts. Complete the entire signature flow safely inside your browser.

What is Online PDF Signing?

Online PDF signing lets you add visual electronic signatures directly onto your PDF pages. By avoiding the printing, signing with a pen, and scanning cycle, you save significant time. Our tool provides full drawing canvases, typing controls, and signature scaling options to fit your signature neatly into contract blocks.

SmartPDFs Plus processes your documents 100% locally in your browser's memory. No uploads are sent to server folders, which completely eliminates data intercept risks and ensures instant rendering.

How to Sign PDF Documents in 3 Simple Steps

01

Upload PDF

Select your PDF document or image file. The file is opened instantly in your browser workspace.

02

Add Custom Signature

Draw your signature, type it, or upload a PNG image, then drag it to your target page position.

03

Download Signed File

Place it, scale it, and download your updated PDF immediately without watermark overlays.

Key Benefits & Features

100% Private local edit

Because we execute the canvas composition locally on your computer, your signatures and sensitive contracts are never exposed to external cloud servers.

Multiple signature formats

Freely switch between typing cursive script names, drawing custom shapes, or uploading scanned signature files. Set exact colors and size constraints.

  • Supports adding text labels like signing dates, names, titles, and locations.
  • Smooth signature layout placement with quick mouse dragging or touch drag inputs.
  • Complies with PDF specification tags, compatible with global PDF reader catalogs.
  • Completely free, no watermarks, and no sign-up registration is required.

Frequently Asked Questions

Is my electronic signature legally binding?

Yes. Electronic signatures are legally recognized in most jurisdictions (including the US ESIGN Act and European Union eIDAS regulations) for most business and personal agreements.

Are my signatures and documents secure?

Absolutely. Our tool operates completely in your web browser. Neither your PDF document nor the signature you draw or upload is ever transmitted to a server. Everything remains local on your device.

Can I sign multiple pages in the same PDF?

Yes. The editor allows you to navigate through pages and place multiple instances of your signature, date, initials, or custom text boxes on any page.

Can I type my signature instead of drawing it?

Yes. You can draw your signature, type it using elegant cursive fonts, or upload a scanned image of your physical signature.

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Add or update Author, Title, Subject and other document metadata fields.

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