Here are links to two CMYK graphic files and two PDF files of this portrait of Chris Conrad for use in print news reports or materials intended to promote events at which he is speaking. Below that are two RGB jpegs of the same image for web use 

Download high definition CMYK  jpeg 2.5 MB

Download medium definition CMYK jpeg 2.1 MB 

Download high definition PDF image 3.5 MB

Download medium definition PDF image 2.1 MB

Chris Conrad portrait 2016

RGB image 640 pixels square

Chris Conrad portrait 2016

RGB image 1080 pixels square