Sign and Stamp PDF Online
Add both digital signatures and stamps to your PDF documents in one place. Sign, stamp, and download — fast, secure, and free to start.
✓ Signatures + Stamps in one tool ✓ No registration ✓ Secure processing
One Tool for Signatures and Stamps
Many business documents require both a signature and a company stamp. Contracts, invoices, official letters, and legal paperwork often need the personal authorization of a signature combined with the institutional authority of a company seal or stamp.
StampDocs combines both capabilities in a single, easy-to-use tool. Instead of switching between different applications or making multiple passes through a document, you can add all your signatures and stamps in one session and download the completed document instantly.
The tool works directly in your web browser — no software installation, no plugins, no downloads. Upload your PDF, add your signature and stamp images, position them precisely where they need to go, and you're done.
How to Sign and Stamp a PDF
Upload PDF
Drop your document file
Add Signature
Upload your signature image
Add Stamp
Upload company stamp or seal
Download
Get signed & stamped PDF
You can place signatures and stamps on any page of a multi-page document. Each element can be resized and repositioned independently. Preview the final result before downloading to ensure everything is positioned correctly.
Common Use Cases
Contracts & Agreements
Sign contracts and add your company stamp for full authorization
Invoices & Financial Docs
Authorize invoices with signature and company seal for payment processing
Legal Documents
Notarize documents with both personal signature and official seal
Official Letters
Add signature and company letterhead stamp to formal correspondence
Secure Document Processing
When you're signing and stamping important business documents, security is critical. StampDocs encrypts all file transfers with HTTPS and automatically deletes your documents after processing. We never store your files permanently and never share them with third parties.
Our platform is GDPR compliant and follows industry best practices for document security. Whether you're handling contracts, financial documents, or confidential correspondence, your data stays private.
All-in-One Tool
Add signatures, stamps, and seals in a single session. No switching between apps.
Enterprise Security
HTTPS encryption, automatic file deletion, GDPR compliant processing.
Precise Placement
Click to place, drag to resize. Pixel-perfect positioning on any page.
FAQ
Can I sign and stamp a PDF online?
Yes! StampDocs lets you add both signatures and stamps to PDF documents in one session. Upload your PDF, add your signature image, place your company stamp, and download the signed and stamped document instantly.
Is it free to sign and stamp PDFs?
Yes, StampDocs offers a free plan allowing you to sign and stamp 3 PDF documents per day. No credit card or registration required for basic use.
How do I add both a signature and stamp to the same PDF?
Upload your PDF to StampDocs, then upload your signature image and stamp image. Click on the PDF to place each one where needed. You can add multiple signatures and stamps to the same page or different pages, then download everything in one file.
What file formats are supported for signatures and stamps?
StampDocs supports PNG (recommended for transparency), JPG, and SVG files for both signatures and stamps. Transparent PNG files provide the best results as they blend seamlessly with the document background.
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