Format DJVU still remains popular for storing scanned books, technical documentation and archival materials - despite the fact that its development began in 1996. The main advantage of this format is high quality images with minimal file weight, which is especially valuable for owners of smartphones with limited memory. However, standard Android applications (for example Google Drive or Files) cannot work with DJVU out of the box.

If you downloaded a tutorial, instructions or a rare book in .djvuformat, but you don’t know how to open it on your phone - this article will help. We analyzed 8 specialized applications (including offline readers and cloud services), compared them in terms of loading speed, annotation support and ease of reading on small screens. We also prepared a unique table comparing functionswhich you will not find in other reviews.

Why DJVU does not open on Android by default

In contrast from PDF or EPUB, format DJVU is not included in the standard set of supported formats in Android. This is due to several reasons:

  • 📜 Patent restrictions. DJVU compression technology has long been proprietary, and Google did not include support for it in Android System WebView or standard libraries.
  • 📉 Decreased popularity. After the 2010s, most publishers switched to PDF/A or EPUB3, and DJVU remained a niche format for scans.
  • 🔧 Lack of built-in codecs. Decoding DJVU requires external libraries (for example, DjVuLibre), which smartphone manufacturers do not integrate into firmware.

Even if you try to open DJVU through Google Drive, the system will only offer to download a file or find an application in Play Market. At the same time, some phones (for example, Samsung Galaxy with a shell One UI) may show preview thumbnails, but full reading will still not be available.

⚠️ Attention: Some sites offer “online converters” DJVU to PDF. Be careful - uploading files to unknown services can lead to leakage of confidential information (for example, if the document contains scans of passports or contracts).

Top 5 offline applications for reading DJVU on Android

If you need to work with files without an Internet connection (for example, in the metro or outside the city), pay attention to these apps. All of them support page-by-page browsing, scaling and saving bookmarks:

  1. DjVu Reader (from Mobile Systems) - the simplest solution with a minimalistic interface. Supports text search inside a file and exporting pages to PNG.
  2. EBookDroid —open source, optimized for older devices (works even on Android 5.0). Can open DJVU, PDF i XPS.
  3. PocketBook Reader an application from an e-book manufacturer. It has night mode and a line spacing setting.
  4. FBReader is a popular reader with support for cloud libraries. For DJVU, you need to install an additional plugin.
  5. Cool Reader — flexible display settings (for example, you can enable autoscrolling or presentation mode).

All of the listed apps are free, but some (for example, PocketBook Reader) contain advertising or offer premium features (such as syncing bookmarks between devices).

📊 Which app do you use to read books on Android?
FBReader
Cool Reader
PocketBook
Other
I don’t read books on my phone

App comparison: feature table

To make it easier choice, we have compiled a table with key parameters. Pay attention to the column "OCR support" - this is a text recognition function on scans, which is useful for searching documents:

Application Offline mode Text search OCR support Export pages Advertising
DjVu Reader ✅ Yes ✅ Yes ❌ No ✅ PNG/JPEG ❌ No
EBookDroid ✅ Yes ✅ Yes ⚠️ Partially ❌ No ❌ No
PocketBook ✅ Yes ✅ Yes ✅ Yes (paid) ✅ PDF/PNG ⚠️ There are banners
FBReader ✅ Yes ❌ No ❌ No ❌ No ❌ No
Cool Reader ✅ Yes ✅ Yes ❌ No ✅ PNG ❌ No

If you need maximum functionality is important, choose PocketBook Reader (despite the advertising). For minimalists suitable DjVu Reader, and if support for older devices — EBookDroid.

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Before installing the application check the reviews for the last month - some apps (for example WinDjView for Android) may contain outdated libraries and will not open files created after 2020.

How to open DJVU through cloud services (without installing apps)

If you are not If you want to download additional applications, you can use online viewers. This method is suitable for one-time tasks, but keep in mind: the download speed depends on file size and the quality of the Internet connection.

Here are three reliable service:

  • 🌐 DjVu Online (djvu.online) - download the file from your phone or from the cloud (Google Drive, Dropbox), the service shows it in the browser. The maximum file size is 50 MB.
  • 🌐 AnyConv (anyconv.com) - in addition to viewing, it allows you to convert DJVU to PDF or JPEG. Supports files up to 100 MB.
  • 🌐 GroupDocs Viewer (groupdocs.app) - a professional tool with support for annotations. The free version is limited 50 pages per day.

To open a file via the cloud:

  1. Open a browser (for example, Chrome or Firefox).
  2. Go to one of the services (links above).
  3. Click "Select file" and enter the path to DJVU on your phone.
  4. Wait for processing (may take up to 1-2 minutes for large files).
⚠️ Attention: Online services can save uploaded files on their servers for up to 24 hours. Do not use them to work with confidential documents (for example, scans of medical records or legal contracts).
What to do if the service does not open the file?

If the online viewer gives an error, check:

1. File size —it may exceed the service limit (usually 50–100 MB).

2. Format —some services do not support DJVU with multi-channel compression (for example, files created in DjVu Solo 3.1).

3. File corruption —try opening it on a PC using WinDjView. If it doesn’t work, the file may have been damaged during downloading.

Step-by-step guide: how to open DJVU via DjVu Reader

Let's look at the process using the example of the simplest application - DjVu Reader. It weighs only 5 MB and does not require registration.

Step 1. Install the application from Google Play:

  1. Open Play Market.
  2. Enter in search DjVu Reader.
  3. Click "Install" (developer - Mobile Systems).

Step 2. Find the file on your phone:

  1. Run DjVu Reader.
  2. Click "Open file" (button in the form of a folder).
  3. Go to the directory where the DJVU is saved (for example, Downloads or Documents).
  4. Select the desired file - it will open automatically.

Step 3. Set up the display:

  • 🔍 Zoom: Spread your fingers on the screen to enlarge the image.
  • 📑 Page navigation: Swipe left/right to scroll.
  • 🌓 Night mode: Tap the moon icon in the top menu.

Download the application from the official store|Check the file size (no more than 100 MB for stable operation)|Close background apps to save memory|Activate Do Not Disturb mode-->

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DjVu Reader is the only application in this review that correctly opens files with multi-layer scans (for example, books with color illustrations on a black and white background).

What to do if DJVU does not open or slows down

Sometimes files refuse to open even in specialized apps. Here 5 reasons and solutions:

  1. The file is damaged

    Symptoms: the application generates an error "Failed to open the file" or shows blank pages.

    Solution: download the file again or use a recovery utility (for example, DjVu Repair Tool on a PC).

  2. Not enough memory

    Symptoms: the application closes when opening the file > 200 MB.

    Solution: close background apps or split the file into parts using DjVuLibre.

  3. Old version of Android

    Symptoms: the application installs, but does not launch (for example, on Android 4.4).

    Solution: use EBookDroid —it supports versions up to Android 5.0.

  4. Incompatible compression format

    Symptoms: hieroglyphs or artifacts are displayed instead of text.

    Solution: convert the file to PDF via AnyConv (see section about cloud services).

  5. Blocking by antivirus

    Symptoms: the file does not open, although other DJVUs work fine.

    Solution: add the application to the antivirus exceptions (for example, Avast or Dr.Web).

If none of the methods helped, try opening the file on another device (for example, a tablet or PC). Perhaps the problem is hardware graphics acceleration your smartphone.

How to convert DJVU to PDF on Android (if all else fails)

If you need send the file by mail or print a document, it is easier to convert DJVU to universal PDFFor this, you can:

  • 📱 Converter applications:
    • DjVu to PDF Converter (from IceColdApps) - preserves the quality of scans.
    • All Document Converter - supports batch processing.
  • 🌐 Online services:

Instructions for DjVu to PDF Converter:

  1. Install the application from Play Market.
  2. Click "Select file" and specify DJVU.
  3. Select quality (Average, High or Maximum).
  4. Click "Convert" and wait for completion.
  5. PDF will be saved in the folder Downloads.
⚠️ Attention: When converting color scans to PDF, the file size may increase 2-3 times. If your phone memory is limited, use image compression in the converter settings.

FAQ: Frequently asked questions about DJVU on Android

Is it possible to open DJVU in Google Drive without third-party applications?

No, Google Drive does not support viewing DJVU directly. The maximum you can do is download the file to your device and open it through a specialized application (see section Top 5 offline applications).

Why does DJVU open very slowly on my phone?

This is due to hardware limitations:

  • Old smartphones (for example, with a processor Snapdragon 4xx) are not optimized for DJVU decoding.
  • Files with a resolution of 300 DPI require more resources.

Solution: try reducing the quality display in the application settings or convert the file to PDF.

How to add a bookmark to DJVU on Android?

In most applications (for example, Cool Reader or PocketBook) for this you need:

  1. Open file.
  2. Go to the desired page.
  3. Click on the bookmark icon in the top menu (usually this is the icon 🔖).

Bookmarks are saved automatically and synchronized between devices (if you use an account in the application).

Is it possible to edit text in DJVU on your phone?

No, the DJVU format is intended only for viewing. If you need to edit a document:

  1. Convert it to PDF or DOCX via AnyConv.
  2. Open in editors like Microsoft Word or Adobe Acrobat.

Please note that after conversion you may need manual editing (for example, correcting text breakdown).

Which application is better for reading textbooks in DJVU?

For educational literature we recommend:

  • PocketBook Reader — supports text notes and selection.
  • EBookDroid - convenient for two-page mode (as in a real book).

If in a file a lot formulas or diagrams, disable the option "Adjust to screen width"in the application settings to avoid distortion.