Sign PDF

Sign a PDF Online

The Sign PDF tool lets you add a visible signature to a document directly in your browser, either by drawing your signature or using an existing signature image. It is useful for forms, approvals, and documents that need a visible signature before saving or sharing.

How to Sign a PDF

1. Select the PDF file you want to sign.
2. Create a signature by drawing it or choose a signature image using the available options.
3. Place the signature in the appropriate position on the page.
4. Adjust its size or position if those controls are available.
5. Process the file, download the signed PDF, and review the result.

Sign PDF Features

1. Add a drawn signature to a PDF.
2. Use an existing signature image.
3. Place the signature within the document before downloading the result.
4. Useful for forms, approvals, and administrative documents.
5. Create a new PDF without replacing the original file.
6. Works directly in your browser without installing additional software.

Visible Signature vs. Digital Signature

This tool adds a visible signature to a PDF page, such as a drawn signature or signature image.

A certificate-based digital signature is different. It uses cryptographic verification to help authenticate the signer and document integrity. A visible signature image should not automatically be treated as a substitute when a certified digital signature is required.

Frequently Asked Questions About Signing PDFs

Can I draw my signature in the tool?

Yes. The tool supports adding a drawn signature using the available interface options.

Can I use an image of my signature?

Yes. You can use a signature image if the image-upload option is available.

Can I choose where the signature appears?

The tool allows you to place the signature within the document. Review its position and size before creating the final PDF.

Is this the same as a certificate-based digital signature?

No. A drawn or image-based visible signature is different from a digital signature that uses certificates and cryptographic verification.

Is the original PDF changed?

No. A new PDF containing the signature is created, while the original file remains unchanged on your device.

Can I use this tool to sign contracts?

You can use it to add a visible signature, but whether that signature meets legal or formal requirements depends on the document and the requirements of the receiving organization or jurisdiction.

Does adding a signature affect PDF quality?

The process is not intended to reduce document quality. Review the output to make sure the signature is clear and does not cover important content.

Do I need to install additional software?

No. The tool works directly in your web browser.