Factsheet
Original author Tor Andersson
Developer Artifex Software
Release 31 March 2005; 21 years ago (2005-03-31)
Original author Tor Andersson
Developer Artifex Software
Release 31 March 2005; 21 years ago (2005-03-31)
Reddit
reddit.com › r/degoogle › open source pdf reader android apps.
r/degoogle on Reddit: Open source pdf reader android apps.
August 18, 2024 -
One month ago I decided to degoogle my phone ( as far as it's possible ) , I exchanged as many apps as I could for open source one. But the thing is I can't find a good pdf reader. I tried Mupdf ans Orion both medium. You have any other recommendations.
( For now I still use Adobe's pdf reader )
Top answer 1 of 5
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Onlyoffice
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Desktop wise, Okular made by KDE project is great. On Linux and Windows. MacOS has a built in reader. It’s also in beta on IzzyDroid and Fdroid repos. As for the meantime with android, this one may s’be what you are looking for. Can also do ebooks.
I've created an open-source PDF Viewer. Smooth, Dark mode (app & PDF), True Full Screen, Remembers last page, Search and more. Aug 29, 2022
r/opensource 3y ago
What's the best safe and free pdf editor for android in 2021 (preferably open source) Oct 11, 2021
r/androidapps 4y ago
Adamsdesk
adamsdesk.com › posts › free-open-source-pdf-reader
The 18 Best Free Open Source PDF Readers of 2026
May 27, 2026 - ... Librera Reader (a.k.a. Lirbi Reader, PDF Reader) is a highly customizable and feature-rich application for reading books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR formats on Android devices.
Videos
This Free PDF Viewer for .NET MAUI Beats Every WebView ...
06:35
7 Must-Have Free OPEN SOURCE Android Apps - YouTube
00:59
Best OPEN SOURCE PDF APP for Android - YouTube
00:49
Best OPEN SOURCE Android PDF Reader App - YouTube
07:31
PdfViewer App - Load Local Pdfs From Device ( Android Studio ) ...
25:22
Make a PDF Reader App | Android Project | Part-1/2 - YouTube
Reddit
reddit.com › r/fossdroid › foss pdf reader for android
r/fossdroid on Reddit: FOSS PDF Reader for Android
January 9, 2024 -
Looking for a FOSS PDF reader for Android. Any must-try recommendations?
P.S. Already eyeing MuPDF, LibreraReader, KOReader. Thoughts?
Note: I wish it were Material Design 3, but this is impossible in anyway...
GitHub
github.com › offa › android-foss
GitHub - offa/android-foss: A list of Free and Open Source Software (FOSS) for Android – saving Freedom and Privacy.
Secure PDF Viewer · FairScan [F-Droid] MakeACopy [F-Droid] OpenNoteScanner [F-Droid] OSS Document Scanner [IzzyOnDroid] PaperKnife+ [F-Droid] PDF Converter [F-Droid] Aria2App [F-Droid] Download Navi [F-Droid] dvd [F-Droid] Gopeed · LibreTorrent [F-Droid] Myne [F-Droid] [IzzyOnDroid] Navit [F-Droid] Openlib [F-Droid] Seal [F-Droid] SpotiFlyer [F-Droid] Torrent Client [F-Droid] TorrServe [F-Droid] YTDLnis [IzzyOnDroid] addy.io Android [F-Droid] SimpleLogin [F-Droid] FairEmail [F-Droid] K-9 Mail [F-Droid] monocles mail [F-Droid] Ltt.rs [F-Droid] Thunderbird [F-Droid] Tutanota [F-Droid] Cryptoma
Starred by 10.6K users
Forked by 488 users
Languages Python 43.6% | Shell 29.7% | HTML 26.7%
F-Droid
f-droid.org › packages › com.artifex.mupdf.viewer.app
MuPDF viewer | F-Droid - Free and Open Source Android App Repository
Lightweight document viewer · MuPDF supports PDF 1.7 with transparency, encryption, hyperlinks, annotations, searching, form editing and more. It also reads OpenXPS and CBZ (comic book) documents. Author: Artifex Software LLC · License: GNU Affero General Public License v3.0 or later · Website · Issue Tracker · Source Code ·
GitHub
github.com › GrapheneOS › PdfViewer
GitHub - GrapheneOS/PdfViewer: Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. CSP is used to enforce that the JavaScript and styling properties within the WebView are entirely static. · GitHub
Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. CSP is used to enforce that the JavaScript and styling properties within the WebView are entirely ...
Starred by 994 users
Forked by 131 users
Languages Kotlin 85.2% | JavaScript 11.2% | Java 1.9% | CSS 1.5% | HTML 0.2%
EndeavourOS
forum.endeavouros.com › lounge › linux lounge
Any good (FOSS) PDF readers for Android? - Linux lounge - EndeavourOS
August 18, 2022 - Any good (FOSS) PDF readers for Android · Does anybody know any good PDF readers besides Adobe? Don’t wanna use Adobe because https://reports.exodus-privacy.eu.org/en/reports/com.adobe.reader/latest/ · F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications ...
Quora
quora.com › What-is-a-good-open-source-PDF-reader-component-library-for-Android
What is a good open source PDF reader component/library for Android? - Quora
Answer: There are plenty of users and developers out there who have been trying to figure out how best to use PDFs on Android. Google lost the ball when it chose to not provide Android with a native PDF Viewer. After reading a lot on the topic, I understand that developers believed that Google w...
F-Droid
f-droid.org › packages › com.foobnix.pro.pdf.reader
Librera Reader | F-Droid - Free and Open Source Android App Repository
Librera Reader is a highly customizable and feature-rich application for reading e-books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, formats. With its intuitive, yet powerful, interface, Librera makes ebook ...
Reddit
reddit.com › r/foss › which open-source pdf reader do you use?
r/foss on Reddit: Which open-source PDF reader do you use?
October 13, 2025 -
Hey everyone 👋 I’m searching for a good open-source PDF reader for Android. I prefer something simple, privacy-friendly, and stable.
Which one do you personally use and why do you like it?
Suggestions are welcome! 🙌
Top answer 1 of 28
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Sumatra PDF
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They're all pretty bad (either they dont expose the table of content, don't allow you to select text, don't allow you to search, they're super slow on large PDFs, etc..) The best I found is ReadEra but it's not FOSS. Librera is similar and FOSS. Other than that you should know that Firefox can now open PDF files directly. Brave/chromium can view PDF but afaik it doesn't expose it to the system (so when tapping a PDF in your file manager brave won't be an option, but Firefox/Fennex will)
AlternativeTo
alternativeto.net › software › pdf-reader
Open Source KDAN PDF Alternatives for Android: Top 13 PDF Readers & PDF Editors | AlternativeTo
March 7, 2025 - If that doesn't suit you, our users have ranked more than 100 alternatives to KDAN PDF and 13 are open source and available for Android so hopefully you can find a suitable replacement.
GitHub
github.com › DImuthuUpe › AndroidPdfViewer
GitHub - DImuthuUpe/AndroidPdfViewer: Android view for displaying PDFs rendered with PdfiumAndroid · GitHub
AndroidPdfViewer 1.x is available on AndroidPdfViewerV1 repo, where can be developed independently. Version 1.x uses different engine for drawing document on canvas, so if you don't like 2.x version, try 1.x. Library for displaying PDF documents on Android, with animations, gestures, zoom and double tap support.
Starred by 8.5K users
Forked by 2.1K users
Languages Java
Coderanch
coderanch.com › t › 527716 › Open-source-PDF-viewer-Android
Open source PDF viewer for Android (Android forum at Coderanch)
February 17, 2011 - Android · Arslan Khan · Greenhorn · Posts: 18 · I like... posted 15 years ago · Number of slices to send: Optional 'thank-you' note: Send · Hello Friends I've tried various open source PDF viewers as listed below; http://www.mupdf.com/ http://code.google.com/p/android-pdf/ http://cod...
Medium
medium.com › @rjmittal07 › how-i-built-a-pdf-viewer-library-thats-both-lightweight-and-powerful-b238dc79d592
How I Built an Android PDF Viewer That's Lightweight and Powerful | Medium
April 24, 2025 - A tiny Android PDF viewer with zooming, caching, and no native code. Built from scratch, designed to be lean and fast, without compromising features.
Top answer 1 of 4
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It seems that no one of the pure java pdf libraries will work with android because they use libraries that aren't supported by android. I think I read that iText is interested in doing a port to android but thinks that google should support them if they did, haven't got a source on that though.
Here is a project in work for writing pdfs in android: sourceforge.net/projects/apwlibrary Haven't tried it and it says that it only does simple pdfs
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This might help you
http://androiddeveloperspot.blogspot.com/2013/05/android-pdf-reader-open-source-code.html
PDF Library to rendering the PDF files in Android
You can also try pdfbox
http://pdfbox.apache.org/
You can chk this post
http://markmail.org/message/b2xjozidt32rhuyq#query:pdfbox%20android+page:1+mid:ipq7pviignd4cpja+state:results
SourceForge
sourceforge.net › projects › andpdf
Android PDF Viewer download | SourceForge.net
Download Android PDF Viewer for free. Andorid PDF Viewer is a viewer for PDF-Files on ANDROID mobiles. The implementation will be a port of the pdf-renderer which is published by SUN under the LGPL: https://pdf-renderer.dev.java.net/.
Rigorous Themes
rigorousthemes.com › home › 15 best pdf readers for android (free included) 2026
15 Best PDF Readers For Android (Free Included) 2026
May 28, 2026 - MuPDF is a free, open-source, lightweight PDF reader and document viewer that handles XPS, CBZ, PDF, and unprotected ePUB documents. It focuses mainly on PDF files and comprises command-line tools, software libraries, and viewers for various platforms. The customizable and highly versatile PDF reader allows you to add PDF functions quickly and easily to your mobile app through app kits for your Android device.
GitHub
github.com › ahmmedrejowan › PdfReaderPro
GitHub - ahmmedrejowan/PdfReaderPro: Modern PDF Viewer for Android · GitHub
Modern PDF Viewer for Android. Contribute to ahmmedrejowan/PdfReaderPro development by creating an account on GitHub.
Starred by 117 users
Forked by 27 users
Languages Kotlin
GitHub
github.com › afreakyelf › Pdf-Viewer
GitHub - afreakyelf/Pdf-Viewer: A Lightweight PDF Viewer Android library which only occupies around 80kb while most of the Pdf viewer occupies up to 16MB space. · GitHub
A Lightweight PDF Viewer Android library which only occupies around 80kb while most of the Pdf viewer occupies up to 16MB space. - afreakyelf/Pdf-Viewer
Starred by 1.2K users
Forked by 240 users
Languages Kotlin 99.7% | Python 0.3%