Book and PDF reader
About this app
Librera Reader is a highly customizable and feature-rich application for reading e-books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, formats.
With its intuitive, yet powerful, interface, Librera makes ebook reading a veritable pleasure. It even features a unique auto-scrolling, hands-free Musician's mode, with controllable speed.
F-Droid version is based on the latest MuPDF and support Android 4.1+.
The only difference between Librera FD (F-Droid) and Librera PRO is the absence of Google Play services and Google Drive book synchronization in Librera FD.
# Just a few Librera main features:
* Easy document discovery by configurable criteria: * Auto-Scan (user-specified folders) * Browse folders (using an in-app file explorer) * Recent (featuring a reading-progress indicator) * Support for bookmarks, annotations, and EPUB3 tables of contents * Configurable Day and Night modes * Configurable link color (hence, footnotes and endnotes color) * Support for many popular offline dictionaries * Vertical-scroll lock * Auto- and manual centering of documents * Custom ad-hoc CSS coding * Single-page view of two-page documents * Musician's mode with configurable scroll speed * Customizable TTS reading and built-in media player * Page-wise TTS recording to MP3 or WAV * Multi-word text search * Support for archived (.zip) documents * Support for RTL languages (Thai, Hebrew, Arabic, etc.) * Import and export of settings, auto-backup of current session * Leading initials in FB2 documents * RSVP reading (à la Spritz) * Movable bookmarks, w/ a floating indicator * And a whole bunch of other features for you to check out.
You can read books in your web browser with the Librera Book Reader https://librera.mobi/online-book-reader/
The best way to fully appreciate Librera Reader, however, is to use our restriction-free Librera PRO version from Google Play.
If you enjoy Librera, please consider making a donation: https://www.patreon.com/librera
Licensed under GPL-3.0-or-later, by Ivan Ivanenko.
What's New in v9.3.75-fdroid
Imported from the F-Droid repository index.
Version history
Apr 26, 2026 · 92.9 MB · Android API 24–36 · code 7062
Imported from the F-Droid repository index.
SHA-256 c97ebafa99bafd75628d25883287499e35907dc3d525111e267f0615d4fc6c83
Mar 3, 2026 · 92.9 MB · Android API 24–36 · code 7010
Imported from the F-Droid repository index.
SHA-256 f8ad9b6333f7eedd81ab85fb497732b247f64025b1f6ecd97c199be678b9dff0
Feb 1, 2026 · 92.8 MB · Android API 24–36 · code 6978
Imported from the F-Droid repository index.
SHA-256 32891d5a0c9b5ea5b97b89f959d6fd788274ae3721f849bb203d3a10d79d86ff
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.foobnix.pro.pdf.reader is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 9.3.63-fdroid is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Librera Reader first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Librera Reader, and a listing is removed when the evidence for it stops holding up.
Get Librera Reader
Every source we list for com.foobnix.pro.pdf.reader is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
c97ebafa99bafd75628d25883287499e35907dc3d525111e267f0615d4fc6c83
Signing certificate
ea0d90df4dde7b9a9e8eaebe2e8aa47ed13f4df9d77aa64bc99c7ed309d2a84d
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.