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Free PDF Signing Tool – Add Signature to PDF Online

Sign PDF documents online for free. Draw, type, or upload your signature and place it on any page.

How to Use Sign PDF

1

Upload PDF

Upload the PDF document you need to sign.

2

Create Signature

Draw, type, or upload your signature. Choose color and size.

3

Sign & Download

Position your signature and download the signed PDF.

Sign PDF Documents in Seconds — Free & Secure

Helperzy Sign PDF tool lets you add your signature to any PDF document in three ways: draw it with your mouse or finger, type your name in a signature font, or upload an image of your signature. Position it precisely on any page, adjust the size, and download your signed PDF in seconds — without printing, signing by hand, and rescanning. The tool overlays your signature as a layer on top of the existing page, so the original document stays intact underneath. Drawing works well on touchscreens and gives a natural handwritten look, typing is quick and legible, and uploading a transparent PNG of your real signature looks the most authentic. You can place the mark exactly where the signature line is and resize it to fit. This fits countless everyday tasks. You can sign a rental agreement, return a completed onboarding form, approve a quote, or initial a contract — all from your computer or phone. For people who do not own a printer, it removes the entire print-sign-scan cycle, which is especially useful when a document is needed quickly. A couple of honest points worth knowing. This adds a visible electronic signature, which is widely accepted for everyday agreements, but it is not the same as a cryptographic digital signature with a certificate that some legal or government processes require — check what the recipient needs. Make sure you also fill in any required fields like dates before signing. Because everything runs in your browser, your document and signature are never uploaded to a server and are not stored anywhere, keeping the whole process private.

Frequently Asked Questions – Sign PDF

Upload your PDF, then draw, type, or upload your signature, position it over the signature line, and click Sign. Download the signed PDF instantly — no signup needed. Everything runs in your browser, so your document and signature stay private and are never uploaded to a server.

Professional standards, zero cost.

Helperzy is built for everyone — developers, students, and professionals who need fast, reliable tools without the friction.

Always Private

Browser-based tools run 100% on your device. Your files are never uploaded, never seen by us, never stored anywhere.

Edge Optimised

Processes are distributed across global edge nodes for minimum latency. Server-side files auto-deleted in 60 minutes.

Always Free

Every tool is free forever. No account, no credit card, no email required. Open a tool and start in seconds.

Works Everywhere

No software to install. All browser-based tools use modern Web APIs — fast, offline-capable, and always available.

Get in touch

Have a tool request, found a bug, or want to report a security concern? We read every message and typically reply within 24 hours.

  • Tool requests & feature ideas
  • Bug reports & feedback
  • Security concerns or responsible disclosure
  • Partnership & business enquiries

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