Perfect Viewer is a very fast image/comics/ebook viewer.

 *Turn black/white image into 4 colorize image(Only available for donated users. Need install Perfect Viewer donation application).
 *Page layout: Auto single page, Auto dual page, Auto switch by screen orientation
 *Support eEook file format: EPUB, HTML, TXT
 *Support image file format: JPEG, PNG, GIF, BMP, WebP, TIFF
 *Support archive file format: CBZ/ZIP, CBR/RAR, 7Z/CB7, LZH, CBT/TAR
 *Support PDF, XPS & DJVU file after install the PDF plugin
 *Open file from network file sharing(CIFS/SAMBA), FTP, SFTP, FTPS, OPDS
 *Require internet permission for CIFS/SAMBA support. 
 *Support open files from Google Drive, Dropbox, OneDrive after install the source plugin
 *Require "GET_ACCOUNTS" and "USE_CREDENTIALS" permission for Google Drive support
*Support 3 viewer mode: Page mode, Vertical scroll mode (PDF viewer,webtoon like) and Horizontal scroll mode.
 *Smooth filters: Averaging, Bilinear, Bicubic, Lanczos3;
 *Five view mode: Full size, Fit Screen, Fit Width, Fit Height, Fixed size, Stretch;
 *Support Left-to-right & right-to-left reading
 *Set image as wallpaper
 *Browse image in folder/archive as thumbnail
 *Bookshelf function
 *Support pinch to zoom & fling gesture
 *Simple bookmark function
 *My favorites management
 *Cache next and previous page
 *Simple file management(delete, rename)
 *Slideshow
 *Support extract files from archive
 *Adjust image brightness,contrast & gamma
 *Auto cut off white border.
 *Support Google Chromecast
 *Balloon magnifier

The most powerful and fast image/comics viewer.