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Screenshots of Maru
Description of Maru - ComicViewer/TextReader

This is an app that allows you to open text files, comic files, compressed files, PDF, epub files stored on your Android phone or web server and view them as if they were books.

It does not provide content (novel/manga files) by default.
※ Only Google Play Protect-certified devices are supported.

The main features are as follows.


1. text viewer

- Support TXT, CSV, SMI, SUB, SRT
- Support EPUB (text and picture display), support built-in font
- Open compressed text (ZIP, RAR, 7Z, ALZ/EGG) directly
- Changeable fonts (san-serif/serif/custom font), adjust size/spacing/margins etc
- Changeable character encoding (Auto/UTF-8,...)
- Changeable text/background color/background image
- Page turning method: arrow/screen tap/screen drag/volume button
- Page turning effect (animation) : roll over, slide, swipe, scroll
- Various Quick navigation: navigation bar, dial, page input
- Add/rename/sort/lookup bookmarks
- Text-to-Speech: language selection, speed control, special characters/kanji exclusion
- Slideshow: adjustable speed
- Search text: one by one, search all
- Edit text: edit, add new file
- Text alignment: left, justified, 2-sheet horizontal view
- Quick brightness
- Sentence organization


2. comic viewer

- Support JPG, PNG, GIF, BMP, WEBP, TIFF, HEIC, AVIF, ZIP, RAR, 7Z, CBZ, CBR, CB7, ALZ/EGG, PDF files
- Open compressed pictures (ZIP, RAR, 7Z, ALZ/EGG) directly
- Support zip streaming
- Support double compression
- PDF: zoom up to 8x and sharpen option when zooming in
- Left-right order/shuffle: left -> right, right->left (Japanese style), landscape 2-page view
- Support zoom in-out, magnify
- Page turning method: arrow/scroll tab/scroll drag/volume button
- Page turning effect (animation): left/right scroll, up/down scroll, webtoon scroll
Webtoon scroll can smoothly scroll very long pictures.
- Quick navigation: navigation bar, dial, page input
- Add/rename/sort/lookup bookmarks
- Slideshow: set in seconds
- Keep picture zoomed in
- Support animated gif/webp/avif
- Support picture rotation (manual rotation, Auto rotation of JPEG/Webp)
- Double filter(inversion, sepia, sharpen, ...)
- Support cropping edge


3. file function

- Color mark of reading history: red(recent), green(partially read), blue(fully read)
- Picture Preview: Tiled(Large, Small), Detail
- Selectable file extension
- Sorting : Name, Size, Date
- Support delete rename, copy, move
- Searching: file name, content, picture
- Support uncompressing manually
- Support read or write of USB storage(FAT32,NTFS,exFAT)


4. other

- Theme/Color
- Support language selection (Korean, Chinese, Japanese, English, ...)
- Support Auto Synchornization of reading history
- Support SFTP (secure file transport protocol)
- Support FTP (file transport protocol)
- Support SMB (Windows Shared Folder, Samba)
- Support WebDAV
- Support Google Drive
- Support Dropbox
- Support MS OneDrive
- Password lock
- Support S-pen of Samsung Note 9 and above: page turning, pausing slideshow
- Headset button support: pausing slideshow
- Media button (Bluetooth earphone, etc.) support: pausing TTS
- Backup/restore settings (Maru, Arar compatible)
- Shortcut management (e.g. add/delete shortcut of other apps)

Version history Maru - ComicViewer/TextReader
New in Maru 4.4.21
- bug fix

※ Key Features Added Recently
- zip streaming in image viewer
- Auto synchronization of history among devices
- Double filter in image viewer
- Sorting options in image viewer
- Manual decompression function
- Open epub whole at once
- Image background in text viewer
- Image enlargement in image viewer
New in Maru 4.4.11
- refine auto synchroniztion
- bug fix

※ Key Features Added Recently
- zip streaming in image viewer
- Auto synchronization of history among devices
- Double filter in image viewer
- Sorting options in image viewer
- Manual decompression function
- Open epub whole at once
- Image background in text viewer
- Image enlargement in image viewer
New in Maru 4.4.10
- refine auto synchroniztion
- bug fix

※ Key Features Added Recently
- zip streaming in image viewer
- Auto sync. of history between devices
- Double filter in image viewer
- Sorting options in image viewer
- Manual decompression function
- Open epub whole at once
- Image background in text viewer
- Image enlargement in image viewer
New in Maru 4.4.7
- add Quick Brightness
- bug fix

※ Key Features Added Recently
- zip streaming in image viewer
- Auto sync. of history between devices
- Double filter in image viewer
- Sorting options in image viewer
- Manual decompression function
- Open epub whole at once
- Image background in text viewer
- Image enlargement in image viewer
New in Maru 4.3.23
- bug fix
New in Maru 4.3.22
- bug fix
New in Maru 4.3.21
- add Double Filter to Image Viewer
- add file name+size file classification to auto sync
- bug fixed
New in Maru 4.3.20
- refine 'Split into Two'
- bug fix
New in Maru 4.3.18
- refine 'Split into Two'
- bug fix
New in Maru 4.3.17
- refine 'Split into Two'
- bug fix
New in Maru 4.3.15
- bug fix
New in Maru 4.3.14
- bug fix
New in Maru 4.3.13
- bug fix
New in Maru 4.3.12
- bug fix
New in Maru 4.3.11
- bug fix
New in Maru 4.3.10
- add Auto Synchronization
- refine "Two at a time"
- bug fix
New in Maru 4.3.9
- add Auto Synchronization
- refine "Two at a time"
- bug fix
New in Maru 4.3.6
- add Auto Synchronization
- refine "Two at a time"
- bug fix
New in Maru 4.3.5
- Add Alignment Options to Image Viewer
- Add decompression capability
- Improved USB OTG support
New in Maru 4.3.3
- Add Alignment Options to Image Viewer
- Add decompression capability
- Improved USB OTG support
New in Maru 4.3.2
- Add Alignment Options to Image Viewer
- Add decompression capability
- Improved USB OTG support
New in Maru 4.3.1
- Add Alignment Options to Image Viewer
- Add decompression capability
- Improved USB OTG support
New in Maru 4.3.0
- Add Alignment Options to Image Viewer
- Add decompression capability
- Improved USB OTG support
New in Maru 4.2.18
- add 'Full Open' in epub
- bug fix
New in Maru 4.2.17
- add 'Full Open' in epub
- bug fix
New in Maru 4.2.16
- add 'Full Open' in epub
- bug fix
New in Maru 4.2.15
- add 'Full Open' in epub
- bug fix
New in Maru 4.2.14
- add 'Full Open' in epub
- bug fix
New in Maru 4.2.13
- add image background in text
- bug fix
New in Maru 4.2.12
- add image background in text
- bug fix
New in Maru 4.2.11
- bug fix
New in Maru 4.2.9
- enlarge image in animation
New in Maru 4.2.7
- bug fix
New in Maru 4.2.5
- bug fix
New in Maru 4.2.4
- bug fix
New in Maru 4.2.0
- supports alz/egg file extension
- supports up to 400 of reading history
- supports file movement/copy
- bug fix
New in Maru 4.1.9
- bug fix
New in Maru 4.1.2
- bug fix
New in Maru 4.0.8
- supports avif
- bug fix
New in Maru 4.0.7
- bug fix
New in Maru 4.0.3
- search text in entire epub/zipped file.
- bug fix
New in Maru 4.0.2
- support heic image
- bug fix
New in Maru 3.13.20
- refine usb massive storage support in AOS 11
- bug fix
New in Maru 3.13.16
- bug fix
New in Maru 3.13.15
- refine "Two Pages at Once"
- bug fix
New in Maru 3.13.7
- refine Lock/Dim option in TTS
- add TTS Button Position
- add animation to SlideShow in text viewer
- add Trans option in One-by-One Searching
- add Digest Authention to WebDev
- deleteing bug in sdcard fixed
- bug fix & refine UI
New in Maru 3.13.4
- support WebDAV
- refine mouse wheel support
- refine UI and bug fix
New in Maru 3.13.3
- bug fix
New in Maru 3.12.4
- bug fix
New in Maru 3.12.3
- starts faster in Android 11
New in Maru 3.11.4
- bug fix
New in Maru 3.11.2
- Add remote backup/restoration
- Add history restoration/merge
- Add option for long file name
- Refine TTS button
- Bug fix
New in Maru 3.10.13
- bug fix
New in Maru 3.10.11
- support tiff file
- add Curl2 animation in text viewer
- bug fix
* invisible sdcard in AOS 11
New in Maru 3.10.9
- bug fix
New in Maru 3.10.8
- bug fix
New in Maru 3.10.7
- support rar 5.x and better performance
- refine paging animation
- bug fix
New in Maru 3.10.6
- bug fix
New in Maru 3.10.5
- add a function of proper padding for 'vertical scroll + no border'
- bug fix
* digit disorder on 'Special Character Sorting'
* saving 'vertical scroll + no border' settings
* recommend the same folder for the next on 'Always'
New in Maru 3.10.4
- can enable DoNotDisturb in TTS(AOS 6.0 or higher)
- can edit text file in sdcard(AOS 6.0 or higher)
- can rename file in sdcard(AOS 6.0 or higher)
- bug fix
New in Maru 3.10.3
- add mode in remote server(shared with me, shared link)
- improve MS Onedrive internally
- add option to show rewind popup(settings-openpop)
- bug fix in recommending next file.
- improve security in backup file(v3)
- bug fix
New in Maru 3.10.2
- add mode in remote server(shared with me, shared link)
- improve MS Onedrive internally
- add option to show rewind popup(settings-openpop)
- bug fix in recommending next file.
- improve security in backup file(v3)
- bug fix
New in Maru 3.9.3
- support MS OneDrive
- add Fast Skip to long-tapping
- refine (auto) in Minimum Size
- bug fix
New in Maru 3.9.1
- supports media button's pause/resume in TTS(AOS 6.0 or higher)
- add "System" option in screen rotation
- add "Settings Only" option in restoration
- bug fix
New in Maru 3.9.0
- add JPEG auto rotation(settings-image etc, AOS 7 or higher)
- add manual image rotation(menu-copping/rotation, AOS 5 or higher)
- add menu layout option(menu-menu button/type)
- refine UI and bug fix
New in Maru 3.8.2
- add fix button to search window
- black navigation bar option(menu - lang/theme)
- refine UI and bug fix
New in Maru 3.8.1
- add fix button to search window
- black navigation bar option(menu - lang/theme)
- refine UI and bug fix
New in Maru 3.8.0
- add sftp
- add Disable option to image cropping
- add sdcard history restoration
- bug fix
* epub image processing
* deleting bookmark in image viewer
- refine UI
New in Maru 3.7.3
- add image display option for epub file
- fix the issue of ftp folder name containing special characters
- bug fix
New in Maru 3.7.2
- add slideshow in text viewer
- support "no border" in text viewer's vertical scroll
- support changing bookmark's name after adding it
- support sorting bookmark
- add option about sorting priority
- can exclude Chinese character in TTS
- add option to show inner file name of compressed
- pause/restart using earphone's headset button, spen in TTS
- pause/restart using earphone's headset button, spen in slideshow
New in Maru 3.7.1
- add slideshow in text viewer
- support "no border" in text viewer's vertical scroll
- support changing bookmark's name after adding it
- support sorting bookmark
- add option about sorting priority
- can exclude Chinese character in TTS
- add option to show inner file name of compressed
- pause/restart using earphone's headset button, spen in TTS
- pause/restart using earphone's headset button, spen in slideshow
New in Maru 3.7.0
- change text color in text viewer
- support S Pen : paging(galaxy note 9/10, Tab S6)
- refine UI and bug fix
New in Maru 3.6.4
- show numbers in color advanced setup of text viewer
- expand the scope of padding in text viewer
- bug fix
* massive zipped file error(2.3G above)
* TTS error when using "Scroll on Dragging"
* TTS stops in tablets
* remove blue focus when using keyboard
- refine UI
New in Maru 3.6.3
- add one-way paging using volume button
- add tapping option in text viewer(left:next, right:prev)
- refine the UI of file sorting
- refine reverse option in screen orientation
- add option to show scrollbar (settings-file options, AOS 4.4 or above)
- add option of download speed(settings-remote options, AOS 5.0 or above)
- add option of opening remote image files(smart download, AOS 5.0 or above)
- refine UI and bug fix
New in Maru 3.5.6
- bug fix
New in Maru 3.5.1
- expand zip file support
- bug fix
New in Maru 3.5.0
- support Dropbox connection
- support GoogleDrive connection
- support file deletion in history panel
- support moving parent with backspace button
- show file info
- bug fix
New in Maru 3.4.9
- bug fix
New in Maru 3.4.8
- option of showing TTS button(android 5.0+)
(settings-textviewer-other option)
- option showing 1st page on next volume
(settings-common-next volume)
- bug fix
New in Maru 3.4.7
- clearer on zooming pdf
- improve listing files in ftp
- bug fix
New in Maru 3.4.5
- bug fix
New in Maru 3.4.0
- add white theme
- add language option
- refine UI and bug fix
New in Maru 3.3.3
- bug fix
New in Maru 3.2.9
- bug fix
New in Maru 3.2.7
- bug fix
New in Maru 3.2.6
- add an option to search folders' name
- add an option to change the direction of volume button
- refine UI and bug fix
New in Maru 3.2.5
- bug fix
New in Maru 3.2.4
- bug fix
New in Maru 3.2.2
- add "webtoon scroll" in Image Viewer(for very long image)
- add the selection of tapping/volume button in Image Viewer
- add no border option in Image Viewer
- add the selection of tapping/volume button in Text Viewer
- add preview alignment(settings-file option)
- refine UI and bug fix
New in Maru 3.1.3
- bug fix of reopening pdf.
New in Maru 3.1.1
- add 'Horizontal Scroll' animation to image viewer
- add tap movement to Vertical Scroll
- add page info option
- 3x speed in text-to-speech
- speed up in reading rar, 7z
- basic history count is 100
- refine UI and bug fix
New in Maru 3.0.4
- bug fix
New in Maru 3.0.3
- bug fix
New in Maru 3.0.2
- case insensitive option in search- preview in search- improve UI
New in Maru 3.0.0
- 그림파일 정책 변경(페이지 표시/이동 개선)- 텍스트뷰어에 상하스크롤 애니메이션 추가- epub 지원(텍스트만 표시)- 미리보기 개선(타일형 보기, 자세히 보기)- 그림 나눌때 중복표시- 길게탭 진동 끄기 추가- 뷰어 타이머 추가- 텍스트뷰어 글자크기 0.5단위- 기타 UI개선- bug fix
New in Maru 2.16.19
- bug fix
New in Maru 2.16.11
-bug fix
New in Maru 2.16.10
-bug fix
New in Maru 2.16.9
-bug fix
New in Maru 2.16.6
- add fast seek+menu- bug fix
New in Maru 2.16.5
- add text alignment- bug fix
New in Maru 2.16.3
Ver 2.16.2- improve icons- add "Opening the archive"- import "Rearrange"- remember folder's scroll position- import UI/bug fix
New in Maru 2.16.2
Ver 2.16.2- improve icons- add "Opening the archive"- import "Rearrange"- remember folder's scroll position- import UI/bug fix
New in Maru 2.16.0
버전 2.16.0- 안드로이드 4.0 미만 지원중단- 텍스트 편집 기능 추가- 텍스트 파일 만들기 추가(파일옵션 참조)- 파일 아이콘 개선- 뷰어 도움말 대신 더보기 메뉴로 변경- 기타 UI개선
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