It just needs to be present so that we can have it do the Bayer interpolation and collect the camera exif data into a better-organized form for our - and your - use. You will not have to convert your raw photos to the DNG file format or be required to do anything with the Adobe DNG Converter yourself. Rest assured that we do not let Adobe DNG Converter touch the color. Please understand that we dislike what Adobe Camera Raw (ACR) et al. In the following we will ask that you download and install the Adobe DNG Converter. A note on MakeTiff's use of the Adobe DNG Converter If you have already downloaded and installed MakeTiff and would like to read more about how it works and its settings please go to our main page on MakeTiff. These files are the required input for ColorPerfect's PerfectRAW and can be opened with Adobe Photoshop, Adobe Photoshop Elements and PhotoLine. MakeTiff is a program which converts raw camera images into linear Tiff files without altering color properties. On this page we will detail how to install our auxiliary program MakeTiff on both Windows and Mac OS X. Installing MakeTiff to get started with ColorPerfect's PerfectRAW feature