Maru

The description of Maru

Site Editorial Commentary：Simple! Powerful! ComicViewer/TextReader

Maru is a versatile application designed to enhance your reading experience on Android devices. It allows you to open and view a wide range of file formats, including text files, comics, compressed files, PDFs, and epubs, transforming your device into a portable digital library.

It's important to note that Maru does not provide content directly; you'll need to supply your own novel, manga, or other digital files. Also, the app officially supports only Google Play Protect-certified devices for enhanced security.

Key features of Maru include:

1. Text Viewer:

- Supports TXT, CSV, SMI, SUB, and SRT file formats.
- EPUB support with text and image display, including built-in fonts.
- Direct opening of compressed text files (ZIP, RAR, 7Z, ALZ/EGG).
- Customizable fonts (sans-serif, serif, custom), with adjustable size, spacing, and margins.
- Changeable character encoding (Auto/UTF-8, etc.).
- Customizable text and background colors, plus background image options.
- Multiple page turning methods: arrow keys, screen tap, screen drag, volume buttons.
- Page turning effects: roll over, slide, swipe, scroll.
- Quick navigation options: navigation bar, dial, page input.
- Bookmark management: add, rename, sort, and search.
- Text-to-Speech functionality: language selection, speed control, special character/kanji exclusion.
- Slideshow mode with adjustable speed.
- Text search: find occurrences one by one or search all at once.
- Text editing: edit existing files or create new ones.
- Text alignment options: left, justified, 2-sheet horizontal view.
- Quick brightness adjustment.
- Sentence organization features.

2. Comic Viewer:

- Supports JPG, PNG, GIF, BMP, WEBP, TIFF, HEIC, AVIF, ZIP, RAR, 7Z, CBZ, CBR, CB7, ALZ/EGG, and PDF files.
- Direct opening of compressed images (ZIP, RAR, 7Z, ALZ/EGG).
- Zip streaming support.
- Double compression support.
- PDF support: up to 8x zoom with sharpening options.
- Reading order options: left-to-right, right-to-left (Japanese style), landscape 2-page view.
- Zoom in-out and magnify features.
- Page turning methods: arrow keys, scroll tab, scroll drag, volume buttons.
- Page turning effects: left/right scroll, up/down scroll, webtoon scroll (for smooth scrolling of very long images).
- Quick navigation: navigation bar, dial, page input.
- Bookmark management: add, rename, sort, and search.
- Slideshow mode with customizable intervals.
- Option to keep the picture zoomed in.
- Animated GIF/WEBP/AVIF support.
- Image rotation support (manual, auto rotation for JPEG/WebP).
- Double filter options (inversion, sepia, sharpen, etc.).
- Edge cropping support.

3. File Function:

- Color-coded reading history: red (recent), green (partially read), blue (fully read).
- Picture preview options: Tiled (Large, Small), Detail.
- Selectable file extension.
- Sorting options: Name, Size, Date.
- File management: delete, rename, copy, move.
- Search functionality: file name, content, picture.
- Manual uncompressing support.
- Read/write support for USB storage (FAT32, NTFS, exFAT).

4. Other Features:

- Theme/Color customization.
- Language selection support (Korean, Chinese, Japanese, English, etc.).
- Auto-synchronization of reading history.
- SFTP (Secure File Transfer Protocol) support.
- FTP (File Transfer Protocol) support.
- SMB (Windows Shared Folder, Samba) support.
- WebDAV support.
- Google Drive support.
- Dropbox support.
- MS OneDrive support.
- Password lock for privacy.
- Samsung S-Pen support (Note 9 and above): page turning, slideshow pausing.
- Headset button support: slideshow pausing.
- Media button support (Bluetooth earphones, etc.): TTS pausing.
- Backup/restore settings (Maru, Arar compatible).
- Shortcut management (add/delete shortcuts of other apps).