Sign PDF Online Free — No Upload Required
Add your signature to any PDF document for free. Draw your signature, type it, or upload an image. Your files are never uploaded — all processing happens locally in your browser.
Drop your PDF here or click to upload
💡 Works best with files under 50MB. 100% local processing.How to Sign PDF Files Online
Step 1: Upload Files
Click the upload button or drag and drop your files into the tool.
Step 2: Adjust Settings
Configure your options or arrange files if needed.
Step 3: Click Sign & Download
Click the process button and download your processed file instantly.
Frequently Asked Questions
Q. How can I sign a PDF for free?
Open your PDF in OnlinePDFPro's sign tool, draw or type your signature, position it anywhere on the document, then download the signed PDF. Completely free, no account needed.
Q. Is my signature data stored on any server?
No. Your signature and PDF are processed entirely in your browser. Nothing is uploaded or stored on any server — your data stays 100% private.
Q. Can I sign multiple pages in a PDF?
Yes! You can add your signature to any page in the document. Navigate between pages and place your signature wherever needed.
Q. Does it work on mobile phones?
Yes! OnlinePDFPro works perfectly on all devices - Android phones, iPhones, tablets, laptops and desktops. No app download needed.
Q. Is there a file size limit?
Since processing happens in your browser, there's no server-side file size limit. You can process files as large as your device can handle.