Boss sent the contract, you're on a Pixel or a Galaxy, and the Play Store wants you to install a PDF reader, a PDF editor, a PDF signer, and possibly subscribe to all three. There's a faster way.
Chrome on Android signs PDFs natively through Flint. No install, no account.
The three-tap flow
Save the PDF from email or Drive. Open Chrome, go to Flint's signer, upload the file. Tap where you want to sign, draw with finger (or S Pen if you have a Galaxy Note/Ultra/Fold). Drag the signature into final position, download the signed copy.
Three taps, thirty seconds.
S Pen signatures on Galaxy
If you've got a Galaxy Ultra, Note, or Fold with an S Pen, the signature pad accepts pen input with full pressure sensitivity. The signature looks far more natural than finger-drawn — useful for anything official. The S Pen also pairs nicely with Flint's annotation tool for marking up review documents.
Filling fields before signing
Most contracts need fields filled before signing: name, address, date. Edit the PDF in the same Flint session to add text into form fields, then sign. One trip to Chrome, contract complete.
FAQ
Is a phone signature legally binding?
Yes, under e-signature laws in most countries (eIDAS in EU/UK, ESIGN in US). A clear intent to sign plus a reproducible mark generally counts for everyday contracts. For high-stakes signing (notarised documents, deeds), check local requirements — qualified e-signatures may be needed.
Will the signature look pixelated on the printed copy?
Flint renders signatures as vectors where possible. Printing at 300 DPI gives a clean signature with no pixelation. Finger signatures are inherently rougher than pen signatures, but neither pixelates.
Can I send the signed PDF back via email?
Yes. After downloading, share via Gmail or any email app from the share sheet. The file lives in your Downloads folder, accessible from any app with file access.
Sign the PDF in Chrome and reply 'attached, signed' in under a minute. Open Flint.