This app contains two document viewing and editing activities, SimpleReaderActivity and AdvancedReaderActivity.

SimpleReaderActivity is an all-in-one document reader and PDF editor. It also supports viewing and stream conversion of other file extensions such as .docx, .doc, .pptx, .xlsx, .md, .cbz, and various image formats. In this activity, you can read, annotate, sign, fill-in PDF forms, and more. See the list of features below for more detail.

AdvancedReaderActivity includes everything in SimpleReaderActivity plus file browser functionality for local and SD card files. It includes code samples for implementing lists for recent and favorite files, using document thumbnails, merging multiple documents, and creating new documents. See the list of features below for more detail.

• Multi-tab viewing
• Annotation creation and form filling
• Quick menu
• Annotation toolbar
• Thumbnail slider
• Annotation list
• Outline list
• User bookmarks list
• Page thumbnails, with the ability to add, duplicate, remove, re-organize, rotate, and export pages
• PDF page creation
• PDF page rotation
• Reflow
• Undo and redo
• Full text search
• Auto saving
• Night mode, sepia mode, and custom color mode
• Page cropping
• PDF merging
• Localization