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Sign PDF Online

Draw or type a visible signature, place it on one PDF page, and download the signed copy. Check the recipient's requirements for formal signing.

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Drop a PDF file to sign

or click to browse from your device

Select Files

Your files stay on your device — 100% private

PDF, APPLICATION/PDF

Draw or type a visible PDF signature

Place one drawn or typed signature on the PDF page you choose. The result is a visible mark, not a certificate-based digital signature or identity check. Follow the recipient's signing requirements for formal documents.

How it works

Choose your file

Drag and drop or select files from your device. Document contents stay in your browser.

Run the tool

Choose any available options, then process or inspect the file.

Review the result

Check the outcome and download a file when the tool creates one.

Frequently Asked Questions

Draw a signature with your mouse or touchscreen, or type your name. The tool does not currently import a signature image.
No. This tool adds a visible mark to the PDF. It does not verify identity, create a certificate-based signature, or provide an audit trail. Check what the recipient requires before signing a formal document.
Yes. Navigate to the page, click the preview to place one signature, and adjust its size and position before saving.
No. Your signature is created and applied entirely in your browser. It is never uploaded to or stored on any server. Once you close the tab, the signature data is gone — only the signed PDF you download is kept.

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Add a Visible Signature to a PDF

Draw your signature or type your name, then place the visible mark on one PDF page and save a new copy. Use the page preview to position and resize it before downloading. The PDF and signature are processed in your browser.

This tool adds a visible signature image. It does not verify your identity, issue a certificate, or create a cryptographic PDF signature. Check the recipient's signing requirements before using the result for a formal document.

Place a Signature Where It Belongs

Choose a Page

Navigate to the page that needs your signature, then click the preview to choose its position.

Draw or Type

Draw with a mouse or touchscreen, or type your name to create the visible mark.

Preview the Placement

Move and resize the signature on the page preview before creating the signed copy.

Keep Document Processing Local

The PDF and signature image are handled in the browser for this operation. Keep the original document until you have checked the saved copy.

How to Add a Signature to a PDF

  1. 1

    Choose a PDF

    Select the PDF from your device and navigate to the page you want to sign.

  2. 2

    Create & Place Signature

    Draw your signature or type your name. Click the page preview to place it, then adjust its size and position.

  3. 3

    Download Signed PDF

    Save the new PDF and open it to check that the signature appears where you intended.

Common Use Cases for PDF Signing

  • Adding a visible signature to a document that accepts one
  • Marking an approval copy of an invoice or form
  • Signing a personal document before sharing it
  • Preparing a PDF that does not require identity verification or a certificate

Visible Signature and Digital Signature Are Different

A visible signature shows a mark on the PDF page. A certificate-based digital signature also provides a way for a PDF reader to check the signer and detect later changes. One23PDF creates the visible mark only. If a recipient requires identity checks, an audit trail, or certificate validation, follow that recipient's required signing process.