PDF (Portable Document Format) is a versatile electronic document format. It was initiated by Adobe and was originally intended for electronic presentation of printed materials. Hence, the tasks of this format follow - storing information about the color scheme and the arrangement of elements, as well as ensuring identical output on different monitors and printers. PDF documents can be opened using the free version of Adobe Reader or a web plug-in that is available for most Internet browsers. In some browsers, in particular, in Google Chrome, this format is supported even without the plugin installed. You can edit PDF files using the paid version of Adobe Reader. Also, there are a huge number of programs for both opening and working with this format, and for converting to other formats.
A file with the extension TIF or TIFF is a tagged image file. This file type is used for high quality bitmap type graphics. The format supports lossless compression in which image data is not lost during the compression process. This allows graphic artists and photographers to archive their high quality photographs in a manageable amount of storage without compromising on quality. Where can the Tiff format be applied? Mainly when scanning documents, in printing, if you need to recognize text, as well as in graphics programs that work with it. This format is available for work in Windows and Mac OS X. The rights to the TIFF format are owned by Adobe, so most of the products of this giant most likely open the TIFF format.