There are many alternatives to Orion Viewer for Android if you are looking for a replacement. The best Android alternative is KOReader, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Orion Viewer and 18 are available for Android so hopefully you can find a suitable replacement. Other interesting Android alternatives to Orion Viewer are MuPDF, Adobe Acrobat Reader, MJ PDF Reader and Xodo.
An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.
MuPDF offers a highly versatile PDF, XPS, and eBook interpreter, customizable as a renderer, viewer, or toolkit. Features include digital signatures, redactions, form filling, annotations, and page manipulation, ideal for mobile, eBooks, and embedded apps supporting Java, C++, and Python.
Seamlessly view, annotate, and collaborate on PDFs with freehand drawing and sticky notes. Utilize cloud storage for effortless access and upgrade for advanced editing and conversion to formats like Word and Excel.
Xodo is the ultimate cross-platform PDF viewer and annotator. Powerful, fast, and optimized for all phones and tablets, Xodo makes it easy to access, edit, share, sync, manage, sign, and more.
Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions.
Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .
Comprehensive solution for editing, signing, form filling, OCR scanning, commenting, converting, and redacting PDFs, with AI-driven analysis and content extraction, data export to spreadsheets, text-to-speech, seamless use across desktop and mobile, and batch processing.
Besides exceptionally fast launching and displaying speed, Gaaiho Reader is reliable in printing, filling forms annotating documents and adding bookmarks.
EBookDroid is an open source (GPL'ed) document viewer for Android based on the VuDroid code base.
The simplest PDF viewer. Safe (doesn't require permissions), lightweight (just 6,9MB) and modern.
Offers viewing, searching, printing, and text copying for PDF files on Android. Streamlined for quick access and on-the-go use, optimized for work environments without Drive integration, lightweight, free, and requires minimal permissions.
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