Does this create an editable signature field?
No. The signature is flattened into the page content, so it shows in standard PDF viewers without leaving an interactive field behind.
Sign PDF
Add a signature to a PDF and flatten it.
Upload a PDF, draw or load a signature, place it on a page, and export the final flattened copy.
This file never leaves your device
Processing happens entirely in your browser. Nothing is uploaded, nothing is stored, nothing is sent to us. Close the tab and it's gone.
Check for yourself — open DevTools, go to the Network tab, and run the tool. You'll see no upload.
Action panel
Free users are capped at 3 signed documents per month. Premium users keep unlimited signing.
Login is only requested when the pdf is ready to export.
Free users: 3 signatures per month.
Premium users: unlimited signing and saved history.
What this tool does
Lets you place a signature on a PDF page, keep the page layout intact, and save a flattened final copy without converting your document into an editable annotation layer.
When to use Sign PDF
- • Approvals. Sign an agreement, contract, or completed form before sending it back to the other party.
- • Internal reviews. Add one final sign-off to a document before filing or submission.
- • Form and approval packets. Sign a specific page in a bundled PDF without changing the structure of the file.
Why it is useful
- • It keeps the signed document in the same PDF format as the original file.
- • It helps you sign quickly without printing, scanning, or retyping pages.
- • The signature is flattened directly into the PDF so it is visible in standard readers.
How to use Sign PDF
- 1. Upload the PDF you want to sign.
- 2. Choose the page and place your signature on the preview.
- 3. Use a drawn signature or a transparent PNG file if you already have one.
- 4. Export the signed PDF and download the final version.
Privacy and safety note
The sign tool works in the browser. Your file stays on your device while you place the signature, and the final output is flattened into the PDF. A login is required only when you reach the final download step; the actual signing flow stays usable before that point.
Frequently asked questions
Can I upload a PNG signature?
Yes. Use a transparent PNG with the signature trimmed to the actual ink area for the cleanest result.
Do I have to log in before I can use the page?
No. The page remains usable before the final download step. The login prompt appears only when the document is ready to be saved or downloaded.
Is anything uploaded?
No — the signing stage runs locally in the browser.