Securely Sign PDF Documents Online
The Sign PDF & Fill Forms tool allows you to electronically sign your documents directly in your web browser.
Whether you need to draw your signature on a contract, type out a date, or fill form fields, this tool provides a fast,
intuitive, and entirely local solution. Your files are never uploaded to our servers, ensuring your sensitive data remains completely private.
How to Sign a PDF
- Upload your document: Drag and drop your PDF file into the upload zone above.
- Create a signature: Click the "Draw Signature" or "Add Text Field" button in the left sidebar to open the element creator. You can draw using your mouse/touchpad or simply type your name.
- Place the element: Once saved, your signature will appear in the "Saved Elements" list. Click and drag it onto the document page.
- Adjust position and size: You can move the placed element around by dragging it, and resize it using the handle in the bottom-right corner.
- Export: When you are satisfied with the placement, click "Export Document" to permanently bake the signatures into your PDF file.
Why Use Our Browser-Based Tool?
- 100% Privacy: All PDF parsing, rendering, and modification happens on your device using WebAssembly and JavaScript (via pdf-lib and pdf.js). We do not have access to your documents.
- No Sign-Ups Required: There is no account registration, login, or watermark applied to your output documents.
- Cross-Platform Compatibility: Works flawlessly on Windows, Mac, Linux, and modern mobile browsers without installing any software.
Note: The electronic signatures created with this tool are visual representations and may be legally binding in many jurisdictions depending on local laws. However, this tool does not apply cryptographic digital certificates (such as PAdES) required for advanced or qualified digital signatures.
Signing without the print-sign-scan ritual
The old way to sign a PDF was to print it, sign with a pen, scan it back, and email the result — losing quality and an afternoon. Electronic signing collapses that to a few clicks: draw your signature with a trackpad or finger, type it in a signature font, or drop in an image of your wet signature, then place it where it belongs. For documents with interactive fields, you fill them directly; for flat scans, you overlay text and your signature on the page.
For everyday agreements this is not a shortcut around the law — simple electronic signatures are recognized in most jurisdictions. What matters legally is demonstrable intent to sign, which the act itself provides.
Filling and signing cleanly
- Real fields first — if the form has interactive fields, fill those so values stay aligned and machine-readable.
- Place, then size — position your signature over the line and scale it to look natural, not oversized.
- Date it — add the date near the signature; it’s often required and strengthens the record.
- Flatten before sending — flattening locks your signature and entries into the page so they can’t be shifted or cleared.
Crucially, the document is signed in your browser and never uploaded. Mainstream e-sign services route your contract through their servers; here the file stays on your device, which is the safer default for anything containing personal or commercial terms.
