Does the PDF reader work offline?

Yes, completely. Nothing needs a connection — there is no server and no ads.

Can it open Word and Excel files too?

Yes — .docx, .xlsx, .xls, .csv and .pptx all open in the same app.

Is there a night mode?

Yes, plus light, dark and system themes for the app itself.

Does it track what I read?

No — we never log which documents you open, their names, or their contents. The app does collect anonymous, aggregate usage stats (which features are used) to improve it, never anything about your files, and you can switch that off in Settings.

GenZOffice › A PDF reader app that opens files instantly

A PDF reader app that opens files instantly

A PDF reader should open the file and get out of the way. GenZOffice lists every PDF already on your phone, remembers what you were last reading, and opens documents without a splash of sign-up screens.

Every step runs inside the app on your own phone. The file is not uploaded to a server, no account is needed, and the whole thing works in aeroplane mode.

How to read PDFs on Android

Install and openGenZOffice scans your device and lists the PDFs it finds.
Pick a documentRecent files are pinned at the top; search by name to find the rest.
Read comfortablyPinch to zoom up to 4x, switch on night mode, and jump to any page.
Star what mattersMark documents as favourites so they stay one tap away.

Night mode that is easy on the eyes

Night mode inverts the page so white documents become dark, which makes long reading in bed or on a night bus far less punishing than staring at a white rectangle.

More than PDFs

The same app opens Word (.docx), Excel (.xlsx, .xls, .csv) and PowerPoint (.pptx) files, so you are not installing four viewers to read four attachments.

Nothing is uploaded

Files are read from your device's storage and stay there. No cloud sync, and no account tying your reading to an identity. We never log which documents you open, their names, or their contents.

Frequently asked questions

Does the PDF reader work offline?: Yes, completely. Nothing needs a connection — there is no server and no ads.
Can it open Word and Excel files too?: Yes — .docx, .xlsx, .xls, .csv and .pptx all open in the same app.
Is there a night mode?: Yes, plus light, dark and system themes for the app itself.
Does it track what I read?: No — we never log which documents you open, their names, or their contents. The app does collect anonymous, aggregate usage stats (which features are used) to improve it, never anything about your files, and you can switch that off in Settings.

Also in GenZOffice

Get GenZOffice

Free, with no ads, and every feature works offline. If it saves you time, you can support development.