What this tool does
PlainPDF adds typed signature text near the bottom-right of the first page. This is a visible typed acknowledgement, not a certificate-backed cryptographic digital signature.
Reviewed by PlainPDF on . How we review our tools.
How it works
The browser embeds an italic standard font and writes the entered text onto the first page before downloading a new PDF. The original PDF remains unchanged.
Best suited to
- Adding a simple typed acknowledgement.
- Documents that accept a visible typed signature.
Not designed for
- Certificate-backed digital signatures.
- Placing signatures interactively on any page.
How to sign pdf
- Choose a PDF.
- Enter the signature text.
- Download the signed copy.
When to use this tool
- Add a simple typed acknowledgement.
- Avoid printing for basic documents.
Privacy and file handling
Files are processed in your browser and are not uploaded to our servers. Closing or resetting the tool clears the selected files from this page.
Limitations
- This adds typed text, not a cryptographic digital signature.
- The signature is placed on the first page.
Frequently asked questions
Is this a digital certificate signature?
No. It adds typed signature text only.
Where is the signature placed?
Near the bottom-right of the first page.
Do I need an account?
No. Core tools do not require an account or email address.
Can I use this on a phone?
Yes. The page and upload controls work in modern mobile browsers.