Polaris PDF Viewer is a mobile optimized PDF document viewer developed by Polaris Office Corp. With over 90 million users worldwide, Polaris Office aims to provide a seamless PDF viewing experience on iPhone devices.

The app supports 18 global languages, making it accessible to users from different regions. It offers essential functions to easily view PDF documents on mobile devices. Users can switch between landscape and portrait mode, utilize multi-window mode, and view documents page by page. Additionally, the app provides a text-to-speech function, allowing users to have their documents read aloud.

Polaris PDF Viewer offers customization options such as screen dimming and background selection, including a night mode and paper texture. Users can also annotate documents and make use of the drawing pencil feature. Printing PDF documents is made easy with multiple printing options, and users can copy text from within the document.

The app also focuses on smart managing of PDF documents, allowing users to access and organize files from their device storage and various cloud services, including iCloud, Google Drive, and Dropbox. Users can manage their main PDF documents separately through bookmark settings and utilize various sorting methods to find the documents they need.