At a glance
- Latest version
- v9.4.20 (7177)
- Updated
- Jul 22, 2026 (3 months ago)
- APK size
- 37.1 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- x86 64-bit
- Category
- Books & Reference (app)
- Listed since
- Feb 19, 2021 (at least)
- Permissions
- 15 (2 sensitive)
- Website
- librera.mobi
- Developer contact
- [email protected]
About this APK
PDF Reader: PDF Viewer+Folders is an app by Librera in the Books & Reference category, listed since at least February 2021. It includes native code only for x86 64-bit, so it won't install on ordinary ARM phones (only on x86 devices such as emulators and some Chromebooks).
Since version 8.9.54, the APK grew from 23.5 MB to 37.1 MB and the minimum Android version rose from 4.4 to 7.0. It asks for 15 permissions, 2 of them sensitive: access all files and modify shared storage. It asks for the same permissions as version 9.4.8. The app can read the advertising ID that ad and analytics services use.
What's new in v9.4.20
Description
From the listing uploaded by “appupdater”.
Version history
6 versions are listed, going back to v8.9.54. New versions arrive here every few months. Since v9.3.55 it requires Android 7.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 22, 2026.
- Certificate issued to “Ivan Ivanenko” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Jul 22, 2026
- Validated against Google Play Jul 22, 2026
- Signed byCN=Ivan Ivanenko, L=Kiev, C=38
- Signing certificate (SHA-1)A4:0F:2F:32:B0:71:13:2A:0C:CA:D8:FA:1B:C4:AD:D3:16:B8:EB:92
- File MD5f0840d395c613e966c299a538663bafd
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (15)
PDF Reader: PDF Viewer+Folders requests 15 permissions, 2 of them sensitive.
- Access all files Sensitive android.permission.MANAGE_EXTERNAL_STORAGE
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Control vibration android.permission.VIBRATE
- Foreground service media playback android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) pdf.pdf.reader.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
PDF Reader: PDF Viewer+Folders APK: questions and answers
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the PDF Reader: PDF Viewer+Folders APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is f0840d395c613e966c299a538663bafd.
