Sign PDF
Draw your signature and initials once, then place them on any page of a PDF, with the date or your printed name. Save a signed copy and send it back.
- Free · ad-free from US$2/month
- Works offline
- Android 10 or newer
What it does
Swipe · 6Keep up to 3 signatures and one set of initials in the app, ready for the next document.
Three steps
Choose a PDF
Pick it with Android's file picker, or share it in from your email.
Place your items
Add your signature, initials, the date or text, on any page.
Save and send
A signed copy is saved to Documents/Sign PDF. Your original stays as it was.
Privacy
- Documents are signed on your phone. Nothing is uploaded.
- Your signatures and initials are kept only inside the app, out of cloud backups.
- The app only sees the PDFs you pick or share with it.
- The free version shows ads from Google AdMob, which collects some data. You can change your ad choices in Settings.
Details
- Price
- Free with ads. Premium (no ads): US$2 a month or US$20 a year, cancel any time in Google Play.
- Needs
- Android 10 or newer.
- Saved to
- Documents/Sign PDF, as a new file ending in "_signed".
- Kept in the app
- Up to 3 signatures and 1 set of initials.
- Text
- Up to 60 characters: letters, numbers and common symbols.
- Signature type
- A visual signature, not a certified digital signature.
Questions
Something missing? Send feedback →Is this a certified digital signature?
No. The app places a picture of your signature on the page, like signing on paper. There is no certificate and no tamper-proofing.
Where are my signatures kept?
Only inside the app on your phone. Other apps can't see them, they are left out of Android's cloud backup, and uninstalling the app deletes them.
Can I add text, not just a signature?
Yes. Add the date or a line of text of up to 60 characters, written into the PDF as real text. Letters, numbers and common symbols work; emoji and some scripts don't.