Sign PDFs Digitally
Gone are the days of printing a document, signing it with a pen, and scanning it back. With UnblockPDF, you can add your signature directly to any PDF in seconds.
Three Ways to Sign
Draw your signature using your mouse, trackpad, or touchscreen. This method produces the most authentic result, as it captures your actual handwriting.
Type your name and choose from several signature-style fonts to create a professional-looking signature. This is practical when you prefer a clean, consistent look.
Upload an image of your existing signature if you already have one digitized. If you have your signature as a scan or photo, you can use it directly. The editor can automatically remove the white background on request.
How to Place Your Signature Correctly
Open your PDF in the editor and navigate to the page with the signature line. Select the signature tool and place your signature at the desired location. You can adjust the size and position using drag and drop until the signature sits exactly on the designated line. For multi-page contracts with multiple signature fields, repeat the process on each page.
Common Documents That Need a Signature
Contracts and agreements: Employment contracts, service agreements, purchase contracts, and partnership agreements.
Authorizations and consent forms: Medical directives, consent declarations, and powers of attorney.
Government forms: Applications, registration certificates, and approval forms that require a handwritten signature.
Academic documents: Enrollment forms, internship contracts, and confirmations.
Save Your Signature
Registered users can save up to 10 signatures for quick reuse across documents. This is especially handy if you regularly sign documents, whether as a manager issuing daily approvals or as a freelancer who frequently signs quotes and invoices.
Security After Signing
After signing, it is recommended to flatten the PDF. This permanently embeds your signature into the document so it cannot be moved or removed. For particularly sensitive documents, you can also enable write protection to prevent any subsequent modifications by third parties.