Electronic Signature (e-signature)
A digital representation of a person's signature, used to indicate intent to sign a document. It can be a drawn image, typed name, or uploaded image.
Sign PDF & Fill Forms
Sign PDF documents online for free. Draw your signature or type text. 100% private, runs entirely in your browser with no file uploads.
100% Client-Side Execution Zero Server Storage Infinite File Size Limits GDPR/KVKK Privacy Compliant
Last updated
Sign PDF & Fill Forms is a free, browser-based tool from UseToolSuite's Document & PDF Tools collection. All processing happens locally on your device — your data is never uploaded to any server. Use the tool below, then scroll down for detailed documentation, frequently asked questions, and related resources.
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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.
How to Use This Tool
- 1
Upload
Open your document.
- 2
Sign
Draw your signature or add text anywhere on the page.
- 3
Export
Save your signed PDF.
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Key Concepts
Essential terms and definitions related to Sign PDF & Fill Forms.
Digital Signature
A specific type of electronic signature that uses cryptography to secure the document and verify the identity of the signer. This tool provides electronic signatures, not cryptographic digital signatures.
Frequently Asked Questions
Is my signature and document secure?
Yes. Unlike cloud-based PDF signers that upload your documents to their servers, this tool runs entirely locally in your browser. Your PDF and your signature never leave your device, ensuring total privacy.
Can I type text instead of drawing a signature?
Yes. You can switch to the "Text" tool to type names, dates, or form fields anywhere on the document.
Are the signatures legally binding?
In many jurisdictions, electronic signatures (e-signatures) are legally binding. Drawing your signature onto a PDF constitutes an electronic signature. However, this tool does not provide cryptographic digital certificates (which are required for advanced digital signatures in some specific legal or government contexts).
Can I move the signature after placing it?
Yes. You can drag the signature or text to position it exactly where you need it before clicking "Export Document".
Does signing the PDF lock it from further editing?
Placing a signature and exporting embeds the signature as an image in the PDF. To fully lock the PDF and prevent others from altering the content, use the Flatten PDF or Protect PDF tools after signing.
Troubleshooting & Technical Tips
Common errors developers encounter and how to resolve them.
Signature looks blurry
Ensure you draw the signature clearly. The tool captures your drawing at high resolution and scales it down to fit the document, which should result in a crisp output.
Cannot type text
Make sure you have selected the "Text" tool from the toolbar and clicked on the document where you want the text to appear.
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