What is a 9.PNG file?
The 9.PNG file extension refers to NinePatchDrawable images which add extra information into a standard picture, allowing it to define the parts that can be scaled or those which can be stretched. It is built into the core of Android, thereby allowing it to resize a given file according to the screen size of a device to make the content presentable.
Users will mostly find the 9.PNG in Google Android SDK created via Draw 9-patch tool. The software allows them to define nine patches, four edges, four corners, and the middle portion. It will enable the software to ascertain how to resize the image to ensure that it fits on a given screen. It is a bitmap image that belongs to the raster group.
How to Open 9.PNG Files
How to Make 9.PNG Files
Exact steps for creating 9.PNG files will vary by program and operating system. Download one of the above listed programs and you should be able to follow typical procedure for opening files or creating files from the File menu. Typically you will select File > Open or File > New and continue through the prompts. Some programs may follow a different procedure for either creation or opening of files.