In Preview Version 7.0 (826.4) I have a scanned black & white TIFF image. I added a red outline using Tools/Annotate/Rectangle. Why is it that when I re-open the file in Preview the rectangle appears in black & white? Thank you.
MacBook Pro (Retina, 15-inch, Late 2013), OS X Mavericks (10.9.5), Time Capsule; AGT784WNV DSL Gateway