X2IMG is a free-to-use image generation application for Android devices that can convert various file formats to PNG or JPG. In addition to conversion, it also functions as a file preview tool for PDF, EPUB, CBZ, XPS, TIFF, JFIF, JPG, and PNG formats. The app does not delete or modify the original file and saves all generated images in the folder "X2IMG" located in the device's external storage.

The app has an easy-to-use interface and offers a range of features, including image management, multi-selection, image zoom in/out, and the ability to sort image folders and images in a folder. Users can also set the quality of generated JPGs and hide or show generated images in the gallery or Photo Album app. The app also offers premium-only features like page selection for conversion, simple page preview, and no ads.

X2IMG is a useful tool for converting PDF to JPG or PNG and managing and viewing images in the "X2IMG" folder. The app requires permission to read external storage on Android 6.0+.