Sign your PDF
Drop a PDF here
or click below to choose a PDF from your device.
Signing happens locally in your browser for maximum privacy.
Place at least one signature before downloading
How to use: Create signature → click Add signature to page → drag & resize → download.
Your signature
Electronic signature
Draw / Type / Upload
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Upload a scanned signature PNG/JPG to use it as your signature.
What this tool does
- Adds an image-based signature to your PDF
- Drag + resize signature placement
- No uploads (privacy-first)
Why use GoPDFTools to sign PDFs?
Many online signers upload your documents to servers. GoPDFTools signs your PDF locally in your browser — ideal for private client files and sensitive documents.
Private by default
Your PDF stays on your device. No uploads, no storage.
Fast and simple
Upload → place signature → download signed PDF in seconds.
Precise placement
Drag & resize signature so it fits perfectly on your document.
Frequently asked questions
Quick answers about electronic signatures and privacy.
This tool adds an electronic signature (an image-based signature placed on the PDF).
Digital certificate signing (cryptographic) can be added later as an advanced tool.
No. The signing happens in your browser using JavaScript. Your PDF is not uploaded or stored.
Yes. Use page navigation and click Add signature to page to place it on the current page.
Yes. You can add multiple signature placements (stamps) across pages, then download one signed PDF.
Tools
All PDF tools in one lightweight toolbox.
Every tool is free, fast and runs directly in your browser with no file uploads.