We’re here to help.

Most answers are in the Help center. Still stuck? Write to us — a real person reads every email.

tuanzency@gmail.com — include your phone model, OS version and app version (Settings → About → Version).

Step-by-step guides for every feature and every PDF tool.

Export a backup, import it on the new phone, restore Pro.

Documents wait 30 days in Recently deleted.

Restore Lifetime Pro

Same account
Make sure you are signed in with the Apple ID or Google account you bought Pro with.
Restore
Open Settings → About → Restore purchase.
Still locked?
Email us with the store receipt — no card details needed.

Place the page on a darker, plain surface so the edges are easy to find.
Use even light and avoid your phone's shadow; hold still until the shot is taken.
If text is not found, try the Clean or Grayscale filter and check that the page is in focus.