About the Sign PDF
Sign PDF is a free online pdf tool from Convertify. Stamp a signature image onto any page of a PDF at the position you choose. Simply upload your file, fine-tune the settings, and download your finished result in seconds — directly from your browser, with no software to install and no account to create.
How to use the Sign PDF
- Click the upload box and choose your file, or simply drag and drop it in.
- Adjust the available options to match what you need.
- Click Process File and let Convertify do the work in seconds.
- Download your result instantly — no email, no account, no watermark.
Why use Convertify's Sign PDF?
- Free forever — every tool on this site is free to use, with no hidden limits.
- Private by design — your file is processed for this request only and never stored on our servers.
- Fast — results are usually ready in a few seconds, even for larger files.
- No installation — works entirely in your browser, on desktop or mobile.
Frequently Asked Questions
Do I need a scanner to sign my PDF?
No — upload a saved image of your signature (PNG works best for a transparent background), then position and resize it on the page.
How do I position my signature exactly where I want it?
Set the page number plus X/Y coordinates and a width before applying — the signature image is placed at that exact spot, scaled to your chosen width.
Can I add multiple signatures to different pages in one pass?
Each conversion adds one signature image to one page; for multiple signature placements, run the tool again on the result.
Is this a legally binding electronic signature?
No — this places a visual signature image onto the PDF; it doesn’t add cryptographic signing or identity verification like a certified e-signature service.
What image formats work for the signature file?
Any common image format works, but a PNG with a transparent background looks cleanest since it won’t cover the page content with a white box.
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