My home page provides Geographers with access to information and tools to study and organize the spatial data of our planet. I put a few samples in my Page for your use. They have been compressed and could take awhile to open up. Image viewers or graphic file managers load and save images files as .tif, .gif, .jpg, etc.
Some programs allow for graphic manipulation and enhancements.
Supports many image formats. Windows 95 Version. It reads every image format. A continuing search along the WEB-road leads to these useful data sources.