Sign PDF
Draw, type or upload your signature and stamp it securely onto any PDF page.
Upload PDF Document to Sign
Open your document locally, draw or type your signature, and stamp it anywhere
Overview
Free online PDF signature tool. Draw your signature, select typography styles, or upload signature images, position them on the page, and download the signed PDF without uploading files.
What is Sign PDF & How Does It Work?
Free online PDF signature tool. Draw your signature, select typography styles, or upload signature images, position them on the page, and download the signed PDF without uploading files.
On DGNTool, all processing runs purely client-side with zero data persistence directly in your browser memory.
Sign PDF — Draw, type or upload your signature and stamp it securely onto any PDF page.
How to Use Sign PDF
Fast & IntuitiveSelect Your PDF Document
Drag and drop your PDF file into the secure workspace or browse from your device.
Configure Operation Settings
Adjust pages, compression level, security parameters, or conversion targets according to your needs.
Download Processed PDF
Save your generated PDF file to your device with instant client-side execution and zero delay.
Key Highlights & Advantages
Zero server uploads. Everything processes securely within your local browser memory.
Immediate results with no file upload or download queues.
No registration, no paywalls, and no hidden quotas.
Seamlessly optimized for mobile smartphones, tablets, and desktop workstations.
All data processing runs natively via W3C compliant browser hardware acceleration.
- Closing inactive browser tabs can free up memory when handling large multi-megabyte PDFs.
- Bookmark this tool for quick access whenever you need fast, private document workflows.
Frequently Asked Questions
3 Q&AsAre my documents private and safe when using Sign PDF?
Yes, 100%. All processing occurs locally within your browser using WebAssembly and client-side memory. Your files are never transmitted to any external server.
Is there an arbitrary page count or file size limit?
There are no artificial restrictions on DGNTool. Performance depends only on your local device memory, allowing smooth processing of multi-page documents.
Will my PDF lose formatting, vectors, or text clarity?
Our standard-compliant PDF engine retains vector graphics, embedded fonts, and exact layouts with maximum fidelity.
Popular Scenarios & Calculations
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