# BiLibre DjVu and PDF Reader

> DjVu and PDF reader and cataloger for technical and educational literature. (iPhone/iPad app by Konstantin Bukreev.)

- Source: https://appshunter.io/ios/app/bilibre-djvu-and-pdf-reader/id1230039040 (this page in markdown: same URL + `.md`)
- Developer: [Konstantin Bukreev](https://appshunter.io/developer/547576207)
- Category: Education, Utilities
- Price: $1.99
- Rating: 4.30/5 from 103 App Store ratings · 90 written reviews indexed
- Age rating: 17+
- Requires: iOS 10.0 · 57 MB
- Languages: Russian, American English
- Released: 2017-06-24
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/bilibre-djvu-and-pdf-reader/id1230039040/reviews.md

## What is BiLibre DjVu and PDF Reader?

The application for reading and cataloging books, textbooks, reference books and documents in DjVu and PDF formats in a modern, user-friendly style. Designed mainly for working with technical, scientific and educational literature.

COMFORTABLE READING MODE

• Crops a page margins in manual and automatic mode.
• Themes, color schemes for reading (day, night, sepia and more).
• Page turn with scroll, curl and slide.

POWERFUL ANNOTATIONS

• Notes, stickers and scraps.
• Drawn annotations (Apple Pencil support and just by touching).
• Exports annotations in HTML, PDF, RTF formats.
• Synchronization of annotations and drawings in iCloud.
• Unified view and management of all annotations in all the books at once.

BUILT-IN THE SUMMARY EDITOR

• Markdown formatting.
• Exports summaries in HTML, PDF, RTF formats.
• Synchronization of summaries in iCloud.

ADVANCED FEATURES FOR DJVU

• Text recognition of pages in DjVu (for documents without OCR layer).
• Splits a scanned double-page spread in DjVu into separate pages.

WORKING WITH FRAGMENTS OF TEXT

• Translation of separate words or complete sentences in different languages.
• Full text searching in a book (textual, fuzzy and regular).
• Built-in search for a selected text on the Internet, Wikipedia and Wolfram|Alpha.
• Search for a word definition in a dictionary.
• Text-to-speech in books.
• Smart zoom by double-tap.

CATALOGUER

• Grouping by categories: by authors, subjects, sequences, publishers, tags, popular, recent, new, read and reading now.
• Using tags to categorize documents.
• Customizable search for books in the library by various metadata fields in different modes.
• Search for textbooks on the Internet through arXiv.org, Library Genesis and Google.
• Own folders tree and flexible bookshelf settings for layout and sorting.
• Arranging books on a bookshelf by dragging.

WORKING WITH A METADATA AND A TABLE OF CONTENTS OF A BOOK

• Automated extraction of a metadata from PDF and DjVu.
• Convenient editing of a metadata.
• Editing and creating a table of contents in manual and automatic mode.
• Synchronization of a metadata and a table of contents in iCloud.

STORAGE

• Locally on the device.
• In the Cloud Storage (iCloud Drive, Google Drive, Yandex Disk).
• Content server for accessing files on the device via a local network.
• Import files from shared folders in the local network.
• Export files.

## Key features

- Customizable reading modes
- Annotation and drawing tools
- Summary editor with Markdown
- DjVu text recognition
- Full text searching
- Library cataloging and metadata editing
- Cloud synchronization

## Recent user reviews (10 of 90)

All indexed reviews: https://appshunter.io/ios/app/bilibre-djvu-and-pdf-reader/id1230039040/reviews.md

### 5/5 — После обновления версии ОС не работает

*2026-04-06*

При открытии сразу закрывается

### 1/5 — Не работает

*2025-11-29*

Зря выкинутые деньги. Даже не загружается. Сразу вылетает. Не работает ни на iPad ни на iPhone 15 pro max.

### 1/5 — Does not work!

*2025-11-23*

Crashes on IPad PRO M4 with iOS 26.1. Should be either updated or removed from Apple Store!

### 1/5 — Не работает!

*2025-10-25*

Деньги списали, приложение не рабочее, СОВСЕМ!!!

### 1/5 — Was nice while it lasted

*2025-10-16*

Has been crashing on latest hardware/software for a couple of years now. I keep it in hope that it gets a fix eventually.

### 1/5 — Приложение не открывается

*2025-07-08*

Приложение не открывается, нормально так, оплата списалась, а приложение не работает.

### 2/5 — Может какая-та ошибка?

*2025-07-08*

Был очень доволен приложением. Помогло в учёбе. Обновил iPad и более никак не могу отправить файлы – приложение вылетает. Перегрузить их куда-либо нереально. Для файлов приложение стало тюрьмой.

### 1/5 — Предложение больше не работает

*2025-06-20*

Сегодня июнь 2025 года, купила приложение на ipad mini. Оно абсолютно не работает, вылетает при загрузке.

### 1/5 — Не запускается на IPad Pro 2022

*2025-06-18*

Приложение хорошее на iPhone. На iPad не запускается - тут же вылетает (платная версия)

### 2/5 — Сообщение

*2025-04-05*

Загрузил, установил на iPad. Не открывается.

## Frequently asked questions about BiLibre DjVu and PDF Reader

### What is BiLibre DjVu and PDF Reader?

BiLibre DjVu and PDF Reader is an application designed for reading and cataloging books, textbooks, reference books, and documents in DjVu and PDF formats. It offers a modern, user-friendly interface with a focus on technical, scientific, and educational literature.

### What are the key features for reading and annotation?

The app provides a comfortable reading mode with page margin cropping, customizable themes (day, night, sepia), and various page turn animations. It also includes powerful annotation tools like notes, stickers, drawings (with Apple Pencil support), and the ability to export annotations in HTML, PDF, and RTF formats.

### How does the app help with organizing documents?

It features a robust cataloging system that allows grouping by authors, subjects, publishers, tags, and reading status. You can also use tags for categorization, customize searches by metadata fields, and import books from online sources like arXiv.org and Library Genesis.

### What advanced features are available for DjVu files?

For DjVu files, the application offers text recognition for pages without an OCR layer, enabling full-text searching. It can also split scanned double-page spreads into separate pages, making them easier to read and manage.

### Is this app free to use?

Based on the provided information, this application is a paid app. It does not mention any in-app purchases or advertisements, indicating a one-time purchase model for full functionality.

## Version history (last 2 releases)

### 0.6.1 — 2017-07-04

This app has been updated by Apple to display the Apple Watch app icon.

Fixed an error occurring when using the translation service.

### 0.6.0 — 2017-06-24

No release notes.

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## More apps by Konstantin Bukreev

- [KyBook - EPub,FB2,PDF,DjVu Reader](https://appshunter.io/ios/app/kybook-epubfb2pdfdjvu-reader/id673027171)
- [KyBook 2 Ebook Reader](https://appshunter.io/ios/app/kybook-2-ebook-reader/id1018584176)
- [KyBook 3 Ebook Reader](https://appshunter.io/ios/app/kybook-3-ebook-reader/id1348198785)

All apps by Konstantin Bukreev: https://appshunter.io/developer/547576207

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*