JPS is a bitmap category category format. Its developer is the Joint Photographic Experts Group. A raster stereoscopic JPEG image is stored in a file with a .jps extension. It is this image that is used to create 3D effects from a 2D image. In order to obtain a stereoscopic effect, apply a pair of static images of the same size for the right and left eye. They are nearby. Stored as a single image. Differ from each other, but slightly. They, in particular, have a slightly changed perspective. There are other effects. In other words, this is a pair of copies of the same image. Moreover, each of them is slightly different. Including a different angle. Images with the .jps extension are made and stored using a stereo camera, which should have at least two lenses. Such an image is viewed in several ways. Say, using special devices that provide the opportunity for each eye to see its picture. Hence the effect of volumetric image. In particular, when you overlay pictures on top of each other, then you take 3D glasses. JPS files can also be viewed using programs that can convert a pair of 2D images into one 3D image.
PDF is short for Portable Document Format, which can be translated from English as “Portable Document Format”. It was developed by Adobe Systems for use by US federal authorities as a tool for storing working documents. This is a universal cross-platform format, which is now standard for electronic documents. It serves to convert text files (including photographs or other images) into electronic documents without any loss. To read PDF files you need special programs - Adobe (Acrobat) Reader, PDF-Viewer and others.