Sign PDF
Sign PDF lets you add your signature to any PDF document directly in your browser without installing software or creating an account. Open your PDF, choose how you want to sign, draw or type or upload your signature, then drag it into position on the document. Five signing modes share a single workspace: draw signature, type signature, upload signature, add initials, and date stamp. When your document looks right, download the signed PDF to your device. Everything runs locally, so your files and signature data stay on your device and are never sent to a server.
Draw Signature
Hand-draw your signature on a smooth canvas using a mouse, trackpad, or touch screen with adjustable pen color and weight.
Type Signature
Type your name and render it in elegant cursive script fonts for a clean, consistent signature across multiple documents.
Upload Signature
Upload a PNG or JPG scan of your handwritten signature with automatic background removal for clean PDF overlay.
Add Initials
Generate a stamp-style initials block in circle, square, or plain text format to initial every page of multi-page contracts.
Date Stamp
Insert a formatted date stamp in your preferred date format and drag it to the document date field alongside your signature.
Online Sign PDF with Multiple Signing Methods
Getting your signature onto a PDF should not require expensive software or a subscription. Three distinct signing methods mean you can pick whichever fits your situation. Draw freehand with your mouse or finger for a natural, personal result. Type your name and select from cursive fonts when you need something precise and repeatable. Upload a scanned image of your real signature when authenticity matters most. Each method produces a draggable overlay you position anywhere on the page.
Draw Your Signature with Mouse or Touch
The drawing canvas captures every stroke in real time with smooth anti-aliased rendering. Adjust the pen thickness and color before you begin, or clear and redraw until the result matches your natural signature. On mobile and tablet devices, the canvas responds to touch and stylus input just as naturally as mouse input on desktop. Once you are happy with the result, a single click places it on the current PDF page as a movable, resizable overlay.
Type Your Name in Signature Fonts
Type your name into the text field and cycle through the available script and cursive fonts to find the one that looks most like your handwriting. The preview updates instantly so you can compare styles side by side before committing. Because every instance looks identical, typed signatures are a practical choice when you sign the same type of agreement repeatedly.
Place Signatures, Initials, and Date Stamps on Any PDF
After creating your signature, drag it to the exact position on the document page where it belongs. Resize the overlay using the corner handles to match the signature line provided in the form. Adding initials to a multi-page document is straightforward: place an initials stamp on the first page, navigate to the next, and repeat. Date stamps fill in today's date automatically but accept any date you choose, and they support multiple format styles to match the conventions of your document.
Upload and Sign PDF Documents Instantly
Load your PDF by clicking the Upload button or dragging the file directly onto the workspace. The document renders page by page in the main panel. Navigate between pages using the controls at the bottom, place your signature elements, and move on to the next page without losing the signatures already applied. When you are ready, a single click exports everything as one complete signed PDF.
Download Your Signed PDF
When all signatures, initials, and date stamps are in place, click the Download button to save your signed PDF directly to your device. The result is a standard PDF that opens in Adobe Acrobat, Preview, or any other viewer without issue. No watermarks appear, and the file stays lean because only the signature data you placed gets embedded.
Free Sign PDF Tool with Complete Privacy
Your PDF documents often contain sensitive personal, legal, or financial information. Rather than routing your files through a server, everything happens directly inside your browser tab. The PDF loads into browser memory, signatures are applied locally, and the finished file is saved straight back to your device. Nothing is uploaded, nothing is stored, and you never need an account.
No Account, No Upload, No Storage
Every signing mode is open to you the moment you arrive, no registration required. Your PDF files and signature data live only in your browser tab's memory for the duration of your session. The moment you close the tab, everything is cleared. There are no usage limits, no premium tiers for additional features, and no restrictions on document size or number of signatures placed.
Client-Side Processing for Document Security
Because all PDF processing happens inside your browser using JavaScript, your documents are never transmitted across the network. Confidential contracts, NDAs, tax forms, medical documents, and other sensitive agreements can all be signed here with full confidence that your file contents stay private. The signed PDF you download is processed entirely on your own hardware.
Related PDF Tools
These tools work alongside Sign PDF to help you manage your documents:
- Draw Signature -- hand-draw your signature on a canvas with mouse or touch input
- Type Signature -- type your name in cursive fonts for a clean repeatable signature
- Upload Signature -- upload a PNG or JPG scan of your handwritten signature
- Add Initials -- stamp your initials on every page of multi-page contracts
- Date Stamp -- insert a formatted date alongside your signature
- Merge PDF -- combine multiple PDF files into a single document before signing
- Split PDF -- extract specific pages from a PDF before or after signing
- Rotate PDF -- rotate pages to the correct orientation before adding your signature
- Compress PDF -- reduce the file size of your signed PDF for easy sharing