Orion Viewer - Pdf & Djvu

Developer: Michael Bogdanov

Category: Books & Reference

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312.7K installs

2.4K ratings

18.9K monthly active users

Revenue not available

Install Trends

Monthly +696

Steady

Orion Viewer - Pdf & Djvu Summary

Orion Viewer - Pdf & Djvu is a mobile Android app in Books And Reference by Michael Bogdanov. Released in Jan 2012 (14 years ago). It has about 312.7K+ installs and 2.4K ratings with a 3.48★ (mixed) average. Based on AppGoblin estimates, it reaches roughly 18.9K monthly active users . Store metadata: updated Jan 15, 2026.

Store info: Last updated on Google Play on Jan 15, 2026 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: universe.constellation.orion.viewer

First Released: 2012-01-21

Store Last Updated: 2026-01-15

In-App Purchases: No

Ads: No

Website: github.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2023-12-24

AppGoblin Last Crawled: 2026-03-11

Ads & App-Ads.txt

App does not have ads.

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App not yet analyzed for SDKs.

The download and scan process is automated but can require manual troubleshooting. Feel free to reach out if your request does not complete in 24hrs or if you have any questions.

3.48★

Ratings: 2.4K

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Screenshots

App Description

eBook reader for pdf, djvu, xps, comic book (cbz, cbr, cbt) and tiff files

Open source pdf, djvu, xps, comic book (cbz, cbr, cbt) and tiff file viewer. Page scrolling is realized by screen touch (for more details see Menu/Settings/Tap Zones).

Application features:
* Outline navigation
* Bookmarks support
* Page navigation by screen taps + Tap Zones + Key binding
* Text selection
* Single word selection by double tap with translation in external dictionary
* Custom zoom
* Custom manual and auto border crop
* Portrait/landscape orientation
* Support different navigation patterns inside page (left to right, right to left)
* External Dictionaries support
* Built-in file manager with recently opened file view

Orion Viewer is free, open source (GPL) project.
To donate this project, you can buy Orion Viewer: Donation 1$, 3$ or 5$ package from market