Sign PDF
Add your signature to a PDF document
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Pages
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Selected page
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Upload a PDF file
Select a PDF to sign
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How to Use
Upload Your File
Drag and drop your file or click to browse. Your file stays in your browser.
Adjust Settings
Configure options to get exactly the result you need.
Download Result
Process and download your file instantly — no waiting, no server upload.
Why Use This Tool
100% Free
No hidden costs, no premium tiers — every feature is free.
No Installation
Runs entirely in your browser. No software to download or install.
Private & Secure
Your data never leaves your device. Nothing is uploaded to any server.
Works on Mobile
Fully responsive — use on your phone, tablet, or desktop.
Your Files Stay Private
This tool processes your files entirely in your browser. Nothing is uploaded to any server — your data never leaves your device.
- No server upload — 100% client-side processing
- No data stored — files are discarded when you close the tab
- No account required — use instantly without signing up
How to Sign a PDF: Add Digital Signatures to Documents
Key Points
- Draw, type, or upload an image of your signature directly onto PDF pages
- Position and resize signatures precisely on any page of the document
- Visual signatures are added client-side—no documents leave your browser
Signing PDFs digitally eliminates the need to print, sign by hand, and scan documents back. Whether you're signing contracts, approval forms, or letters, adding your signature directly to a PDF is fast, professional, and environmentally friendly.
100%
Private · No server upload
Common Use Cases
Contracts & Agreements
Sign rental agreements, freelance contracts, or NDAs without printing. Place your signature on the designated line and send back immediately.
Approval & Authorization Forms
Managers can sign off on purchase orders, leave requests, or expense reports digitally, speeding up approval workflows.
Letters & Correspondence
Add a personal signature to business letters, recommendation letters, or official correspondence for a professional touch.
Real Estate & Legal Documents
Sign offer letters, disclosure forms, and closing documents remotely, reducing turnaround time in time-sensitive transactions.
Signing Tips
Use a dark color (black or dark blue) for your signature to ensure it's clearly visible when printed.
Draw your signature with a stylus or mouse for the most natural-looking result.
Save your signature image for reuse across multiple documents to maintain consistency.
Note: visual signatures indicate intent to sign but may not carry the same legal weight as cryptographic digital signatures in all jurisdictions.
Signatures are added locally in your browser. No documents are uploaded to any server. Visual signatures indicate intent to sign; consult legal counsel for documents requiring certified digital signatures.