Sign PDFs on Windows

Windows does not include a built-in tool for signing PDF documents. Microsoft Edge can display PDFs and add basic annotations, but it does not offer a proper signature feature. Most Windows users turn to Adobe Acrobat for PDF signing, but that requires a paid subscription starting at $12.99 per month, plus a large software installation. SigPDF provides a simpler, faster alternative. It runs entirely in your web browser — no download, no installation, no Adobe ID required. Open SigPDF in Chrome, Edge, Firefox, Brave, or any browser on your Windows PC, upload your PDF, and add your signature in seconds.

SigPDF offers three ways to create your signature on Windows. You can draw it using your mouse or touchpad, which works well for quick signatures. If you have a Windows tablet or a touchscreen laptop like a Microsoft Surface, you can draw with your finger or a stylus for a more natural-feeling signature. Alternatively, you can type your name and choose from several handwriting-style fonts that look like a real signature. The third option is to upload an image of your existing signature, which is useful if you have a scanned signature or company stamp that you regularly use on documents.

For Windows users who frequently sign documents, SigPDF is a practical replacement for expensive software suites. Whether you are signing a contract from a client, an NDA for a new business partnership, a tax form, or a rental agreement, SigPDF handles it efficiently. You can work with multi-page PDFs, scrolling through the entire document and placing signatures, initials, dates, and text fields on any page. The finished document downloads as a standard PDF that any recipient can open and view with any PDF reader on any device.

Security-conscious Windows users will appreciate that SigPDF processes PDF documents entirely within the browser. Your files are never uploaded to a remote server. This client-side approach means your confidential business contracts, legal documents, and personal files remain private. It also means SigPDF works even in corporate environments where IT policies restrict which software can be installed. Since SigPDF is just a website, no admin permissions are needed to use it. It works on Windows 10, Windows 11, and even older versions of Windows as long as you have a modern browser installed.

Step-by-Step: Sign a PDF on Windows

1. Open Chrome, Edge, Firefox, or any browser on your Windows PC
2. Navigate to SigPDF and drag your PDF into the editor, or click to browse
3. Scroll to the page where your signature is needed
4. Draw your signature with your mouse, touchpad, or touchscreen — or type your name or upload a signature image
5. Click on the document to place your signature, then drag to reposition or resize
6. Add dates, initials, text, or additional signatures as required
7. Click “Download” to save the signed PDF to your Windows PC