What is Sign PDF and how does it work?

Sign PDF lets you add a signature to a document without printing it. You draw or type your signature, drop it where it belongs, and download the signed PDF.

How do I use Sign PDF online?

Upload your file using the box above — drag it in, browse for it, or bring it in from your cloud storage. A preview appears so you can check you've picked the right file. Run Sign PDF, then download the result. You can rename it before you save it.

Is my file secure when I use Sign PDF?

Yes. The file you send to Sign PDF travels over an encrypted HTTPS connection and is processed automatically on our servers. It is never made public, never shared with anyone, and nobody reads it.

Does HuntPDF store my files after Sign PDF has run?

No. Your upload is deleted the moment Sign PDF finishes with it, and the file it produces is removed as soon as you have downloaded it, or when you upload another file, or when you close the page. Nothing is kept, and nothing is used to train anything.

Will the original quality and formatting be maintained?

Yes. The signature is placed onto the page and the rest of the document is left exactly as it was.

Can I use Sign PDF on mobile?

Yes. Sign PDF works in any modern browser on phones and tablets — iPhone, iPad or Android — with nothing to install. You can upload straight from your device or from your cloud storage.

Can I rename my file before downloading it from Sign PDF?

Yes. The file Sign PDF gives you back keeps the name of the file you uploaded by default. If you'd rather call it something else, edit the name in the field next to the download button before you save it.

Do I need to install any software to use Sign PDF?

No. There is nothing to download, install or sign up for — Sign PDF is used from your browser and does the work on our servers, so it behaves the same on Windows, macOS, Linux, Android and iOS.

How long does Sign PDF take?

Most files are finished in a few seconds. A large or page-heavy file takes a little longer, because Sign PDF runs on our servers rather than on your device — but you won't be waiting around. You can upload files up to 250MB.

Is Sign PDF free to use?

Yes. Sign PDF is free, with no signup, no watermark on the result and no daily limit for normal use.

Sign PDF Online Free

Upload your PDF, create a signature, drop it where you want, and download.

Drop your file here

Choose file

Processed securely over HTTPS on our servers, then deleted after processing. No file is stored, shared, or used for training.