Perfect Viewer is a very quick image/comics/ebook viewer. *Turn black/white picture into 4 colorize picture (Only accessible for given users. Need install Perfect Viewer donation program ). *Page design: Automobile single page, Vehicle dual page, Vehicle switch by screen orientation *Support eEook file format: EPUB, HTML, TXT *Support picture format: JPEG, PNG, GIF, BMP, WebP, TIFF *Support archive format: CBZ/ZIP, CBR/RAR, 7Z/CB7, LZH, CBT/TAR *Support PDF, XPS & DJVU file after installation using the PDF plugin *Open file from network file sharing(CIFS/SAMBA), FTP, SFTP, FTPS, OPDS *Require net permission for CIFS/SAMBA support. *Support open documents in Google Drive, Dropbox, OneDrive after set up the origin plugin *Desire"GET_ACCOUNTS" along with"USE_CREDENTIALS" permission for Google Drive service *Support 3 viewer manner: Page mode, Vertical scroll mode (PDF viewer,webtoon like) and Horizontal scroll mode. *Smooth filters: Averaging, Bilinear, Bicubic, Lanczos3; *Five perspective mode: Full size, Fit Screen, Fit Width, Fit Height, Fixed size, Stretch; *Confirm Left-to-right & right-to-left reading *Set picture as wallpaper *Browse picture in folder/archive as thumbnail *Bookshelf serve *Confirm pinch to drag & Task gesture *Straightforward bookmark purpose *My favorites management *Cache next and previous page *simple document management(delete, rename) *Slideshow *Confirm extract files from archive file *Adjust picture brightness,contrast & gamma *Automobile cut white border.