You can find a good replacement here, which is a fork relying on Pdfium instead of Vudroid/MuPDF for decoding PDF files, allowing it to use the Apache License 2.0 which gives you much more freedom.

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Android PDFView is a library which provides a fast PDFView component for Android, with animations, gestures, and zoom. It's based on VuDroid for decoding the PDF file.

Get it

Android PDFView is available in Maven Central.

<dependency>
    <groupId>com.joanzapata.pdfview</groupId>
    <artifactId>android-pdfview</artifactId>
    <version>1.0.4</version>
    <type>apklib</type>
</dependency>

Or via gradle:

compile 'com.joanzapata.pdfview:android-pdfview:1.0.4@aar'

Include PDFView in your layout

<com.joanzapata.pdfview.PDFView
        android:id="@+id/pdfview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

Load a PDF file

pdfView.fromAsset(pdfName)
    .pages(0, 2, 1, 3, 3, 3)
    .defaultPage(1)
    .showMinimap(false)
    .enableSwipe(true)
    .onDraw(onDrawListener)
    .onLoad(onLoadCompleteListener)
    .onPageChange(onPageChangeListener)
    .load();

• pages is optional, it allows you to filter and order the pages of the PDF as you need
• onDraw is also optional, and allows you to draw something on a provided canvas, above the current page

License

Copyright 2013-2015 Joan Zapata

This file is part of Android-pdfview.

Android-pdfview is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Android-pdfview is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Android-pdfview.  If not, see <http://www.gnu.org/licenses/>.