PDF Signer
PDF Signer app icon

Sign a PDF on your phone.
That is the whole app.

Import the document, drag your signature where it belongs, save it. Done in under a minute, with no account and nothing uploaded anywhere.

See how it works What we do with your files

Coming to Google Play. This page is here first so you can read the privacy policy before you install anything.

Why it is different

Most ways to sign a PDF want your document on their server, your email address, or your card. This one wants none of those.

Your document never leaves your phone

There is no server. The file is opened, signed and saved on the device, and the app works with your data switched off.

Your real signature

Draw it with your finger, type your name in a handwriting style, or photograph a signature you wrote on paper. Save it once and reuse it.

Fill the rest of the form

Add the date, your initials, a line of text or a check mark. Everything drags into place the same way.

No watermark, no limit

Every feature is free, on every document, forever. There is no premium tier to buy, so there is nothing held back.

Your original is never touched

We always write a new, separate signed copy. The file you started with stays exactly as it was.

One job, done fast

This is not a thirty-tool PDF suite with a signing feature buried in it. It signs PDFs, and it is quick because that is all it does.

Four steps

  1. Open your PDFFrom your files, or straight from Gmail, WhatsApp or Drive.
  2. Make your signature onceDraw, type or photograph it. It is saved on the phone for next time.
  3. Put it on the pageDrag it where it belongs, pull the corner to size it, add the date if you need it.
  4. Save and sendKeep it, put it in a folder, or share it back in one tap.

A straight answer about digital signatures. PDF Signer creates an electronic signature, which is what almost every form, agreement and contract asks for. It does not create a certificate-based digital signature, the kind that shows a blue check in Adobe Acrobat and needs a certificate from a certificate authority. If someone has specifically asked you for that, you need different software, and we would rather tell you now.