Readbook - Text/Image Viewer

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About this app

It is a large-capacity text file viewer + scanned image viewer. It also provides convenient explorer function and TTS function.

1. Convenient Explorer
- The list UI provides various filter functions, sorting functions, and also provides a filter function for words entered by the user.
- Folder/file name change and deletion functions are possible.
- Google/Naver review search of the file name of the selected item is possible with one click.
- Google Drive can be used.
- SD card can be used.
- File search function
- Preview thumbnail

2. User-friendly theme
- 12 preset themes are provided.
- Custom text color, background color, and font can be changed.
- Font size, line spacing, left and right margins, top margin, bottom margin can be changed.
- Spaces and line breaks are compensated to improve readability. - Incomplete text display is not possible
- Save and Load Theme Settings

3. Viewer
- Supports horizontal and vertical modes
- Page navigation
- Search text in documents

4. Control functions
- Move pages with volume keys
- Use screen scroll function
- Move pages with touch
- Prevent automatic screen off

5. TTS
- Change engine, change voice, change speed, change volume
- Provide notification UI
- Support timer function, skip hanja option

6. Scan Image Viewer
- Automatically selects split mode, 2-page mode.
- Provides dark, light, and clear filters.
- Provides dark theme.

7. Others
- Remember the last viewed file and location
- Recent file list function
- Bookmark function

For errors and inconveniences, please request through [Side menu > Send inquiry email] in the app.

[Permission description]
- File reading permission: Used to read files in all paths of the device.
- Access to all files: From OS 11, 'File reading permission' has been replaced with 'Access to all files' by Google policy.

Ratings and reviews

최근업데이트후 원래있던 open file menu가 사라졌어요 file info 위에있었는데. 의도된건지 제폰pixel8 만 이런건지 모르겠네요. 몇년째애용중입니다. 개발자님 감사합니다

업데이트는 무조건 해야되고 안하면 안열림 업데이트 할때마다 초기화됨 개불편 딴거쓰세요

4년째 잘 사용하고있습니다. 화이팅하세요.