How to sign a PDF on Android

Signing a PDF used to mean printing it, signing the paper, and scanning it back. On an Android phone you can skip all three. This guide walks through signing a PDF with Sigvo, from opening the file to sharing the signed copy.

The short answer

Open the PDF in Sigvo, tap to add a signature, draw or type it, drag it onto the signature line, and export the signed PDF. Everything happens on your phone, with no internet connection and no account.

What you need

• An Android phone running Android 7.0 or newer.
• The PDF you want to sign, either saved on the phone or shared to it from email or a chat.
• Sigvo installed from Google Play.

You do not need a printer, a scanner, or a desktop computer.

Step by step

1. Open the document. Launch Sigvo and pick the PDF, or open the file from another app and choose Sigvo. Word and Excel files work too; Sigvo converts them to PDF first.
2. Add your signature. Tap the signature tool. Draw with a finger, type your name in a script font, or import a signature image you saved earlier.
3. Place it. Drag the signature onto the line, pinch to resize it, and rotate it so it sits straight. Snap guides help you line it up with the page.
4. Export. Save a flattened PDF or share it straight back to email or chat. The signature is baked in, with no watermark.

Draw, type, or import

Each method suits a different moment.

• Draw when you want the document to carry your real handwriting. A finger works; a stylus is steadier.
• Type when you want a consistent, legible signature. Pick one of the built-in script fonts and Sigvo turns your name into a signature image.
• Import when you already have a signature saved as a PNG or JPG. Sigvo can remove a white background so only the ink shows.

Save your signature once and the next document takes a single tap.

Place it precisely

A signature that overlaps the printed text looks rushed. In Sigvo you drag the signature freely, resize it with a pinch, and rotate it to match the line. Add your initials, a date, or a stamp wherever the form asks for them, and use undo to step back if a placement is off.

Sign every page

Long agreements often need a signature or initials on each page. Move between pages and sign them one by one, or apply the same placement to every page at once to save time.

Is a phone signature legally binding?

Sigvo adds a visual signature to your documents. It is not a substitute for a qualified electronic signature service, such as an eIDAS qualified e-signature or your country's legally certified electronic signature. A visual signature is fine for many everyday forms and agreements; when a contract requires a certified signature, use a service licensed for that purpose.

Keep your documents private

Because Sigvo signs on the device, the PDF never leaves your phone. There is no upload and no account, so a contract with personal details stays with you. If you scan a paper form to sign it, the camera image is cropped and enhanced locally, then discarded.