Sign PDF Premium

Add digital signatures to PDFs.

Premium Tool: Sign PDF requires an account. Log in or sign up for free to use this tool.
Upload PDF Document
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Select PDF File

Drag and drop your PDF here or click to browse

Maximum file size: 50MB | Supported format: PDF
document.pdf
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Create Your Signature

Drop your signature image here or click to browse

Supported: PNG, JPG, GIF (Max 5MB)
Uploaded signature
Signature Details
Enter the page number where you want to place the signature
Adding signature to your PDF...

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Download Output
Signature Preview
Your signature will appear here

Tips for Signing
  • Use a stylus or mouse for cleaner drawn signatures
  • PNG with transparent background works best for uploads
  • Include date and name for professional documents
  • This adds a visual signature - for legal validity, use certified digital signatures

How to Sign PDF in 4 Steps

Add digital signatures to authenticate your PDF documents.

1

Upload PDF

Select the PDF document you want to sign.

2

Create Signature

Draw, type, or upload your signature.

3

Add Details

Enter your name, date, and choose position.

4

Download

Save your professionally signed PDF.

About Signing PDF Documents

What is PDF Signing?

PDF signing adds digital or electronic signatures to documents, providing authentication and integrity verification. Digital signatures prove document origin and ensure content hasn't been altered since signing.

Why Sign PDFs?

  • Legal Validity: Create legally binding agreements
  • Authenticity: Verify document creator identity
  • Integrity: Detect unauthorized changes
  • Paperless Workflow: Eliminate printing and scanning

Signature Types

Different signing methods available:

  • Digital Signature: Certificate-based cryptographic signature
  • Electronic Signature: Image-based signature appearance
  • Handwritten Signature: Draw signature with mouse or stylus
  • Text Signature: Typed name as signature

Use Cases

Perfect for contracts, agreements, approvals, authorization forms, legal documents, business correspondence, and any document requiring authenticated signatures.

Frequently Asked Questions

Yes, electronic signatures are legally binding in most countries under laws like the ESIGN Act (USA) and eIDAS (EU). Our tool creates valid electronic signatures recognized for business and legal purposes.

Yes! You can draw your signature using a mouse, touchpad, or touchscreen. Alternatively, upload an image of your handwritten signature or use a typed signature.

Yes, you can add multiple signature fields to a PDF. Each person can sign independently, and signatures are preserved when the PDF is passed between signers.

Very secure. Signatures are embedded directly into the PDF and cannot be easily removed or altered. We use SSL encryption for file transfers and automatically delete files after processing.

Yes, you can add text fields, dates, initials, and stamps in addition to signatures. This allows for complete form filling and document completion.

Electronic signatures are any electronic marking that indicates approval. Digital signatures use cryptographic methods to verify authenticity and detect tampering. Our tool creates electronic signatures suitable for most business needs.