Printing to PDF for color document

I am working with a color document in Adobe Acrobat DC.  I am making comments and editing objects and I want to send the document to someone else but I don't want them to be able to edit the comments I've made.  The only way I know to do this is by printing to PDF.  When I do this, however, the colors come out much more dull and light in color.  Is there a color setting I can select to fix this?  The colors on the original document are very bright and vibrant and when I print it to PDF it comes out dull and hard to read.  Thanks!