The development and support of Librera is frozen for an unpredictable time, there is a big war in my country Ukraine. Russian invasion of Ukraine
Librera Reader is an e-book reader for Android devices; it supports the following formats: PDF, EPUB, EPUB3, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, and OPDS Catalogs
mesa-common-dev libxcursor-dev libxrandr-dev libxinerama-dev libglu1-mesa-dev libxi-dev pkg-config libgl-dev
You also need the Android NDK in version 20+ Please ensure to download it using android studio and add the NDK to your PATH.
Even if you do not plan to upload a version yourself you need a keystore with a certificate to build. The keystore needs to be in PKCS12 format. You can create a keystore in your actual directory using the following call (replace ALIAS by your alias, it is just a name):
keytool -genkey -v -storetype PKCS12 -keystore keystore.pkcs12 -alias ALIAS -keyalg RSA -keysize 2048 -validity 10000
Now edit or create the file ~/.gradle/gradle.properties and set following values (replacing PASSWD by the password you typed while creating the keystore, ALIAS as before and using the path to your keystore):
RELEASE_STORE_FILE=/PATH/TO/YOUR/keystore.pkcs12
RELEASE_STORE_PASSWORD=PASSWD
RELEASE_KEY_PASSWORD=PASSWD
RELEASE_KEY_ALIAS=ALIAS
To build with firebase support (all version but the ones for Fdroid) you need to get an authentication file for firebase services offered by google. Therefore please follow https://firebase.google.com/docs/android/setup to create your own project. You need to register for the packages com.foobnix.pdf.info and com.foobnix.pdf.reader.a1. This way you will get a google-services.json file that you have to place in the app folder of the repository.
For this project only Analytics is used, so a spakling plan is all you need.
cd Builder
./link_to_mupdf_x.x.x.sh (Change the paths to mupdf and jniLibs folders)
cd ..
./gradlew assembleLibrera
If you wish to build for F-Droid (e.g. not using google services, Internet) you can run the build with
cd Builder
./link_to_mupdf_x.x.x.sh
cd ..
./gradlew assembleFdroid
F-Droid build does also not need a google-services.json
See CHANGELOG.md for all changes.
Full release notes: https://github.com/foobnix/LibreraReader/releases
Unreleased APK Direct Download
| App Version | Librera PRO | Librera F-Droid | Release Date |
|---|---|---|---|
| 9.5.7 | 7.0 (API 24) | 7.0 (API 24) | 2026-09-02 |
| 9.4.21 | 7.0 (API 24) | 7.0 (API 24) | 2026-07-21 |
| 9.4.8 | 7.0 (API 24) | 7.0 (API 24) | 2026-05-21 |
| 9.4.5 | 7.0 (API 24) | 7.0 (API 24) | 2026-05-19 |
| 9.3.75 | 7.0 (API 24) | 7.0 (API 24) | 2026-04-24 |
| 9.3.63 | 7.0 (API 24) | 7.0 (API 24) | 2026-03-02 |
| 9.3.55 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-29 |
| 9.3.35 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-23 |
| 9.3.19 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-20 |
| 9.3.10 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-15 |
| 9.3.1 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-12 |
| 9.2.40 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-08 |
| 9.2.31 | 7.0 (API 24) | 7.0 (API 24) | 2026-01-02 |
| 9.2.21 | 7.0 (API 24) | 7.0 (API 24) | 2025-12-30 |
| 9.2.4 | 7.0 (API 24) | 7.0 (API 24) | 2025-12-25 |
| 9.1.35 | 7.0 (API 24) | 5.0 (API 21) | 2025-12-08 |
| 9.1.29 | 7.0 (API 24) | 5.0 (API 21) | 2025-12-01 |
| 9.1.14 | 7.0 (API 24) | 4.1 (API 16) | 2025-11-27 |
| 9.1.7 | 7.0 (API 24) | 4.1 (API 16) | 2025-11-25 |
| 9.0.5 | 7.0 (API 24) | 4.1 (API 16) | 2025-07-10 |
| 9.0.1 | 7.0 (API 24) | 4.1 (API 16) | 2025-07-09 |
| 8.9.182 | 5.0 (API 21) | 4.1 (API 16) | 2024-11-06 |
| 8.9.181 | 5.0 (API 21) | 4.1 (API 16) | 2024-10-24 |
| 8.9.175 | 5.0 (API 21) | 4.1 (API 16) | 2024-05-13 |
| 8.9.170 | 5.0 (API 21) | 4.1 (API 16) | 2024-04-05 |
| 8.9.161 | 5.0 (API 21) | 4.1 (API 16) | 2024-03-12 |
| 8.9.158 | 5.0 (API 21) | 4.1 (API 16) | 2024-01-05 |
| 8.9.147 | 5.0 (API 21) | 4.1 (API 16) | 2023-12-29 |
| 8.9.133 | 5.0 (API 21) | 4.1 (API 16) | 2023-12-21 |
| 8.9.126 | 5.0 (API 21) | 4.1 (API 16) | 2023-12-18 |
| Library | Version | License |
|---|---|---|
| MuPDF | 1.28.3 (1.23.7) | AGPL-3.0 |
| DjVuLibre | 3.5.28 | GPL-2.0-or-later |
| antiword | 1.3.1 | GPL-2.0 |
| libmobi | 0.12 | LGPL-3.0-or-later |
| hqx | 1.2 | LGPL-2.1-or-later |
| LAME | 3.100 | LGPL-2.0-or-later |
| libwebp | 1.3.2 | BSD-3-Clause |
| Component | License |
|---|---|
EBookDroid (org.ebookdroid, org.emdev) |
GPL-3.0 1 |
wmf2svg (net.arnx.wmf2svg) |
Apache-2.0 |
PBKDF2 (de.rtner) |
LGPL-2.1-or-later |
opendocument.java (at.stefl) |
not declared 1 |
DragLinearLayout (com.jmedeisis) |
Apache-2.0 1 |
HSV colour picker (com.buzzingandroid) |
Apache-2.0 1 |
android-lame JNI (com.github.axet) |
Apache-2.0 1 |
| Dependency | Version | License |
|---|---|---|
| androidx.appcompat:appcompat | 1.7.1 | Apache-2.0 |
| androidx.cardview:cardview | 1.0.0 | Apache-2.0 |
| androidx.legacy:legacy-support-v4 | 1.0.0 | Apache-2.0 |
| androidx.recyclerview:recyclerview | 1.4.0 | Apache-2.0 |
| androidx.work:work-runtime | 2.11.2 | Apache-2.0 |
| org.greenrobot:eventbus | 3.3.1 | Apache-2.0 |
| org.greenrobot:greendao | 3.3.0 | Apache-2.0 |
| org.greenrobot:greendao-api | 3.3.0 | Apache-2.0 |
| org.jsoup:jsoup | 1.22.2 | MIT |
| com.github.albfernandez:juniversalchardet | 2.5.0 | MPL-1.1 / GPL-3.0 / LGPL-3.0 |
| com.squareup.okhttp3:okhttp | 3.12.6 | Apache-2.0 |
| io.github.rburgst:okhttp-digest | 3.1.1 | Apache-2.0 |
| com.squareup.okio:okio | 1.17.6 | Apache-2.0 |
| com.github.joniles:rtfparserkit | 1.16.0 | Apache-2.0 |
| org.zwobble.mammoth:mammoth | 1.5.0 | BSD-2-Clause |
| javax.xml.stream:stax-api | 1.0-2 | CDDL-1.0 / GPL-2.0 |
| net.lingala.zip4j:zip4j | 2.11.6 | Apache-2.0 |
| com.github.bumptech.glide:glide | 4.16.0 | BSD-2-Clause and Apache-2.0 |
| commons-logging:commons-logging-api | 1.1 | Apache-2.0 |
| com.google.guava:guava | 33.6.0-android | Apache-2.0 |
| org.commonmark:commonmark | 0.29.0 | BSD-2-Clause |
| org.commonmark:commonmark-ext-gfm-tables | 0.29.0 | BSD-2-Clause |
| com.github.junrar:junrar | 7.6.0 | UnRar License |
Librera is distributed under the GPL v3
See the LICENSE file for license rights and limitations (GPL v.3).