Signing a PDF digitally saves printing, signing, and scanning. This tool lets you drop a signature image onto the page and position it where it belongs, then download the signed document.
Everything is done in your browser, so your document never leaves your device.
How to use Sign a PDF
Using Sign a PDF takes only a few seconds and just four simple steps — no sign-up, no software, and nothing to learn:
- Upload the PDF: Add the document you need to sign.
- Add your signature image: Choose a PNG of your signature (transparent works best).
- Place it: Pick the page, corner, and size for the signature.
- Download: Save the signed PDF.
What you can do with Sign a PDF
Sign a PDF is built to do one job well, and gives you everything you need to get it exactly right:
Image signature. Use a transparent PNG for a clean, realistic signature.
Choose page & spot. Place it on any page, in any corner, at your chosen size.
Private signing. Done in your browser — the PDF isn't uploaded.
Free, no watermark. Sign as many documents as you need.
Sign without printing
Printing, signing, and scanning a document is slow and lossy. Placing a signature image directly onto the PDF is faster and cleaner, and doing it locally keeps confidential agreements private.
Whether you need it once or every day, Sign a PDF keeps the process quick and predictable. Because it focuses on a single task, there are no crowded menus to wade through — you open the page, set what you need, and get your result. That simplicity is exactly why a dedicated PDF tool beats a heavyweight editor for a job like this.
Everything runs in your browser
Unlike most online tools, Sign a PDF never uploads your PDF to a server. The moment you choose a file, it is processed right here in your web browser using your own device's power. Nothing is sent over the internet, nothing is stored, and nothing is shared with anyone.
That gives you two real advantages. First, it is private: sensitive documents, ID photos and personal files never leave your computer or phone. Second, it is fast — there is no slow upload or download round-trip, so even large files are handled almost instantly. And it is completely free, with no watermark added to your result and no account required.
Tips for the best results
- Start from the highest-quality original you have — the better the input, the better the result from Sign a PDF.
- Check the exact requirement — size, dimensions, or format — before you begin, so you only need to do it once.
- Image signature: Use a transparent PNG for a clean, realistic signature.
- Choose page & spot: Place it on any page, in any corner, at your chosen size.
- Everything is repeatable — if the result isn't quite right, just adjust the settings and run it again. Nothing is uploaded, so you can try as many times as you like.
Frequently asked questions
How do I get a signature image?
Create one with the signature generator, which exports a transparent PNG ready to place here.
Can I sign more than one page?
Place a signature on one page per run; repeat the process for additional pages.
Is my PDF uploaded?
No — signing happens in your browser.
Is Sign a PDF free to use?
Yes — Sign a PDF is completely free. There is no account to create, no subscription, and no watermark added to your result. Use it as many times as you need.
Do I need to install anything?
No. Sign a PDF runs entirely in your web browser on any modern device — Windows, Mac, Android or iPhone. There is nothing to download or install.
Ready to start? Scroll back to the top, drop your PDF into Sign a PDF, and download the finished file in seconds — free, private, and right inside your browser.