Security

How to Sign a PDF on Android

June 8, 2026 · By PDFWinner Team

Add your signature to a PDF on any Android phone — draw, type or upload it, all free in Chrome.

Below we cover exactly how to do it — free, in seconds, and entirely in your browser. Because everything runs on your own device, it works the same on Windows, Mac, Linux, Android and iPhone, with nothing to install and no account to create.

Why signing a pdf on android matters

Getting this right saves time and avoids the usual headaches — files that are too big to send, broken formatting, or documents that look different on someone else’s screen. With Sign PDF the process is quick and repeatable, and your documents stay private because they are never uploaded to a server.

Draw, upload or type

Create your signature by drawing it, uploading a photo of it, or typing your name in a signature font.

Place it precisely

Drag the signature onto the exact spot and resize it before exporting.

Step by step: signing a pdf on android

Open the tool. Go to the free Sign PDF page.
Add your file. Drag and drop it, or tap to browse and choose it from your device.
Choose your options. Adjust the settings so the result is exactly what you need.
Run & download. It processes instantly in your browser and downloads right away.

Pro tips

Draw your signature with your finger.
Place and resize it precisely.
No app required.

Is it safe and private?

Yes. PDFWinner runs entirely in your browser, so your files never leave your device — nothing is uploaded, stored, or seen by us. That makes it safe even for confidential contracts, IDs and financial documents.

Frequently asked questions

Which app?

None — just Chrome.

Free?

Yes.

Safe?

Yes, on-device.

Related free tools

Try it now: the free Sign PDF tool — no sign-up, no watermarks, no limits.

#how-to #android #sign