Librera: EPUB & PDF Reader v5.7.21
APK · 13.6 MB · version code 381 · Android 2.3+ · uploaded Dec 13, 2016
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v9.4.20, uploaded Jul 21, 2026 — about 9 years after this one.
- Size: this file is 13.6 MB; the latest is 36.8 MB (23.2 MB larger).
- Android: this version needs Android 2.3+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- The latest version asks for 11 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, Run foreground services, Foreground service media playback, Access all files, Show notifications, Use biometric hardware….
File information
- Version
- v5.7.21 (381)
- Uploaded
- Dec 13, 2016
- Size
- 13.6 MB
- Requires
- Android 2.3+ (API 9)
- CPU support
- ARM 32-bit
- Screen
- Small screens and larger
- MD5
- faebfe9874241ef67fdd3b00a97a6ffc
- Signing certificate (SHA-1)
- A4:0F:2F:32:B0:71:13:2A:0C:CA:D8:FA:1B:C4:AD:D3:16:B8:EB:92
- Signed by
- CN=Ivan Ivanenko, L=Kiev, C=38
- File name
- com-foobnix-pdf-reader-381-22359607-faebfe9874241ef67fdd3b00a97a6ffc.apk
- Package
- com.foobnix.pdf.reader
- Downloads (all versions)
- 10M+
- Age rating
- PEGI 3 · Everyone
What's new in v5.7.21
Background color for PDF
External font names for eBooks
Advanced book settings: paddings, distance between lines for eBooks
Text align for eBooks
.MHT and .MHTML support
Saving dialogs position
A lot of advanced settings for Easy mode
Open video and audio from EPUB3 books
Permissions (4)
This version requests 4 permissions, 1 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Dec 13, 2016.
- Certificate issued to “Ivan Ivanenko” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks
- Developer signature not verified Nov 10, 2021
- Validated against Google Play Dec 13, 2016
- Antivirus scan passed Mar 30, 2020
- Uploaded by “apps” Platinum tier · 3,423,810 followers · uploading since 2010
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (5 other versions compared). AAPKs doesn't scan files itself.
How to install Librera: EPUB & PDF Reader on Android 2.3+
You'll need about 27.1 MB of free space.
- Download the APK — tap Download APK above (13.6 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-foobnix-pdf-reader-381-22359607-faebfe9874241ef67fdd3b00a97a6ffc.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be faebfe9874241ef67fdd3b00a97a6ffc. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Librera: EPUB & PDF Reader — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.3+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 32-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.