Sign PDF
Add a digital signature to your PDF document
Select files or drag and drop here
Sign PDF
What is PDF Signing?
PDF signing is the process of adding a digital signature to your documents to ensure integrity and authenticity. Signed documents verify that no changes were made and identify the signer.
PdfMetric's PDF Signing tool creates and applies your signature entirely in your browser. Your documents are never uploaded to any server—sign securely and for free. Drawing, upload, or text-based signature options are available.
When Should You Use It?
- Contracts: Digitally sign business and personal contracts
- Approval documents: Approve reports and forms
- Official documents: Add signatures to applications and petitions
- Invoices: Approve invoices and receipts
Advantages
- Flexible signature types: Drawing, image, or text signature
- Privacy: Document stays in your browser, never sent to servers
- Easy to use: No setup required, sign instantly
- Free: Unlimited signing
Frequently Asked Questions
Simple visual signatures are generally accepted for most purposes. For transactions requiring legal binding, a certified digital signature (PKI) is recommended.
Yes, you can drag and drop the signature to any position on the page and adjust its size.
How to Use
- Upload your PDF: Select the PDF file you want to sign.
- Choose signature type: Select drawing with mouse, uploaded image, or text signature.
- Place the signature: Drag the signature to the desired position on the page and adjust its size.
- Save and download: Save and download your signed PDF.
Tip: Use sufficient contrast and size so your signature is clear and readable.
Tool Info
- Accepted formats: .pdf
- Max file size: 100 MB
- Processing: Browser
Your Privacy
Your files are processed entirely in your browser and never uploaded to our servers.
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