Unlock
Remove a password you already know. Kunji saves an unlocked copy, so you never type it again to read the file.
No internet permission
Every PDF tool.
Every PDF tool.
Nothing leaves your phone.
Unlock, convert, merge, organize and sign PDFs on your Android phone. Kunji has no internet permission, so it can't upload your statements, IDs or contracts.
Free to use. No ads. No account.
- No internet permission
- No ads, ever
- No account
- Pay once for Pro
Free tools
Everything you need for everyday PDFs. Free.
No caps, no watermarks, no trial. The core tools are free for good.
Images to PDF
Turn photos of IDs, forms and marksheets into one clean PDF. Crop, reorder and brighten pages first.
Merge
Combine statements, forms or chapters into a single PDF, in the order you choose.
Organize
See every page as a thumbnail. Reorder, rotate and delete pages in a few taps.
Sign
Draw, type or photograph your signature and place it on any page. Add text where you need it.
Share in and out
Open PDFs straight from Gmail, WhatsApp or Files, and send the result back where it came from.
Your statements, IDs and contracts stay on your phone. Every single time.
How it works
Made for the statements you get every month.
Bank, card and phone bills arrive locked. Kunji opens them in seconds and keeps a copy you can read and share without the password.
- 1Share the PDF to KunjiFrom Gmail, WhatsApp or your Files app.
- 2Type the password onceThe one from the bank's email. Kunji uses it and forgets it.
- 3Save the unlocked copyPick where it goes. Your original stays exactly as it was.
Kunji only opens files with a password you already know. It never guesses passwords.
Privacy
Privacy you can check yourself.
Most PDF websites and apps upload your files to their servers. Kunji can't. Android only lets an app go online if it asks for the internet permission, and Kunji doesn't ask.
Check it on Google Play
On Kunji's listing, open About this app, then App permissions. Internet isn't there.
Check it on your phone
Open Kunji's app info in Settings and look at its permissions.
Settings › Apps › KunjiNothing collected
No analytics, ads, crash trackers or accounts. We don't know who uses Kunji.
Originals never change
Every result is a new file. The PDF you started with is left as it was.
Pro
For the PDFs you handle every month.
Every tool above stays free. Pro adds eight extras for one payment.
Password vault
Saved passwords open next month's statement by themselves.
One-tap share unlock
Share from Gmail or WhatsApp, save, and you're back where you were.
Batch unlock
Up to 24 PDFs at once, all saved to one folder.
Protect
Add a password before you send, with limits on printing and copying.
Remove hidden details
Strip author and app names from PDFs, and location from photos.
Add pages and split
Add pages from another PDF, or split one file into parts.
Signature extras
Keep up to 5 signatures, plus initials and a date stamp.
App lock
Fingerprint or PIN to open Kunji. Hidden in recent apps.
US$4.99once · no subscription · no ads
Pro is a small key app on Google Play with no permissions. Install it and Pro switches on. Bought it before? Reinstall it free from your Play library.
Can Kunji open a PDF if I've forgotten the password?
No. Kunji only opens files with a password you already know. For bank and phone statements it's usually explained in the email the PDF came with, and is often part of your name with your date of birth.
Does Kunji work without internet?
Yes. It never uses the internet at all, so it works the same in airplane mode.
Where are my files saved?
You choose. After each job Kunji asks where to save the new file. Your original is never changed.
How does Pro work?
Pro is a small key app on Google Play, bought once. Install it and Kunji's Pro features switch on. It has no permissions of its own, and you can reinstall it free from your Play library.
Is there an iPhone version?
Not yet. Kunji is on Android first, and iPhone is planned.
How do I get help?
Email support@kunji.app. In the app, Settings, then Report a problem fills in the technical details for you, without file names, passwords or page content.
Your PDFs stay on your phone.
Kunji means key in Hindi: the key to every PDF job.