MJ PDF
MJ PDF app icon Latest version · 3.1.0

MJ PDF 3.1.0Fast. Private. Powerful PDF reading for Android.

A free, open-source PDF reader for Android that is also a library manager. Pick up where you left off, search, highlight, sign and fill forms, or switch to Text Mode and read a PDF like an e-book.

GPL-3.0 open sourceNo adsAndroid 6.0+
MJ PDF 3.1.0 home screen showing the Recent tab with a Continue Reading card and a list of books with progress
MJ PDF 3.1.0 displaying a PDF in dark mode on Android
3.1.0Current version
8.66 MBAPK size
Android 6+Minimum version
GPL-3.0Open-source license
Everything in one reader

A PDF reader for Android that stays out of your way

MJ PDF combines a reader and a library in one app. Whether you read textbooks, manuals, papers or e-books saved as PDF, everything you need sits within reach.

Library

Recent, Library and Folders tabs, reading history, cover grid and list views, and reading statuses from To Read to Completed.

Dark mode

Darkens the PDF page itself, not only the toolbars.

Search

Search the text of one PDF with next and previous results, or search your whole library.

Annotate

Highlights in several colors, notes, handwritten signatures and PDF forms.

Text Mode

Reflow a PDF and read it like an e-book.

Navigate

Table of contents, links in the file, bookmarks, and jump back or forward through your history.

Safer saving

New in 3.1.0: files are saved more safely, with rescue copies after a failed save.

Private by design

Open source and ad-free, with incognito mode when you do not want a document remembered.

Library

Always back at the right page

The Recent tab puts the book you were reading first, with page count, progress and when you last opened it. Library shows a cover grid you can filter by reading status, and Folders lets you browse your device like a file manager, SD cards included.

  • Continue Reading card with progress
  • Reading statuses: To Read, Reading, On Hold, Completed, Abandoned
  • Search your library from the home screen
MJ PDF 3.1.0 home screen showing the Recent tab with a Continue Reading card and a list of books with progress
Annotate & sign

Mark up what matters

Select text and pick a highlight color from the bar that appears. The same bar lets you copy, share, search the web, add a note or translate the selection. When a document needs your mark, add a signature or fill in the form.

MJ PDF 3.1.0 showing selected text and several highlight colors on a PDF page, with a color and action bar
Reader menu

Every tool is one tap away

Search, Go To Page, Bookmark Page, Full Screen, Hide Margins, Page Text, Print, Add signature, Incognito, Table of Contents, My Bookmarks, My Notes, My Highlights and Text Mode all live in a single menu.

  • Jump back, jump forward and navigation history
  • Links in the file and file metadata
  • Toggle shortcuts for one-handed reading
MJ PDF 3.1.0 reader menu with options such as Search, Go To Page, Full Screen, Text Mode, Table of Contents, Bookmarks, Notes and Highlights
Dark mode

Comfortable night reading

Dark mode inverts the page as well as the interface, so a late-night chapter does not light up the room. Version 3.1.0 also improves theme controls and unifies Reading Mode settings.

MJ PDF 3.1.0 displaying a PDF in dark mode on Android
Share

Quotes worth sharing

Turn a passage into a quote card with the book name and author and a choice of Light, Dark or Sepia themes, ready to send to any app.

MJ PDF 3.1.0 Share Quote dialog previewing a quote card with the book name and author and light, dark and sepia themes
New in 3.1.0

A release focused on correctness and stability

A correctness and stability release: a few new reading options, much safer saving and backups, and a long list of fixes.

Single Page mode

Page fit options

Unified Reading Mode settings

Improved in-document search

Safer file saving, with rescue copies after a failed save

Improved document identification

Improved theme controls

Fixes also landed across Search, Gestures, Backups, Screen rotation, Right-to-left (RTL) reading. Read the full 3.1.0 release notes.

Gallery

See MJ PDF 3.1.0 in action

Unedited screenshots from the real app. Tap any image to enlarge it.

FAQ

Common questions

What is MJ PDF?

MJ PDF is a free, open-source PDF reader for Android made by Mudlej. It combines a library manager with a fast reader, so you can organize, open, search and annotate PDFs in one app.

What is the current version of MJ PDF?

This website presents MJ PDF 3.1.0, a correctness and stability release that adds Single Page mode, page fit options, unified Reading Mode settings, improved in-document search and safer file saving.

Is MJ PDF free and open source?

Yes. The source code is public on GitLab and the app is released under the GPL-3.0 license. There are no ads.

What is new in MJ PDF 3.1.0?

Version 3.1.0 adds Single Page mode, page fit options, unified Reading Mode settings and improved theme controls. It improves in-document search and document identification, saves files more safely with rescue copies after a failed save, and fixes issues with search, gestures, backups, rotation and right-to-left reading.

Which Android versions does MJ PDF 3.1.0 support?

The supplied 3.1.0 build requires Android 6.0 (API 23) or newer.

Where should I install MJ PDF from?

Use an official channel. F-Droid and IzzyOnDroid both list the app under the package name com.gitlab.mudlej.MjPdfReader, and the source code is on GitLab.

Get MJ PDF 3.1.0

Free, open source and ad-free. Install from F-Droid or IzzyOnDroid, or read the source on GitLab.