Descriptions : Perfect Viewer is a very fast picture / comic / e-book viewer.
+ Turn a black and white image into a 4-color image (only available to donated users. Install the Perfect Viewer donation application).
+ Page layout: automatic single page, automatic double page, automatic switching according to screen orientation
+ Supports the eEook file format: EPUB, HTML, TXT
+ Support image file format: JPEG, PNG, GIF, BMP, WebP, TIFF
+ Supports archive file format: CBZ / ZIP, CBR / RAR, 7Z / CB7, LZH, CBT / TAR
+ Supports PDF, XPS and DJVU files after installing the PDF plugin
+ Open the file via network file sharing (CIFS / SAMBA), FTP, SFTP, FTPS, OPDS
+ Internet authorization is required for CIFS / SAMBA support.
+ Supports open files from Google Drive, Dropbox, OneDrive after installing the source plugin
+ "GET_ACCOUNTS" and "USE_CREDENTIALS" authorizations are required to support Google Drive
+ Smooth filters: averaging, bilinear, bicubic, Lanczos3;
+ Five view mode: full size, fit screen, fit width, fit height, fixed size, stretch;
+ Support left to right and right to left reading
+ Set image as wallpaper
+ Browse the image in the folder / archive as a thumbnail
+ Bookshelf function
+ Support of the pinch for zooming and skidding
+ Simple bookmark function
+ My favorites management
+ Cache the next and previous page
+ Easy file management (delete, rename)
+ Slide show
+ Support extracting files from archive
+ Adjust image brightness, contrast and gamma
+ Automatically cut off the white border.
+ Support Google Chromecast
+ Balloon magnifier
Required Android Versions : Ice Cream Sandwich [4.0.3–4.0.4] - Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]