Translucent Background of image is not exporting as translucent. Color Mismatch

How do I export a layout file to pdf that has a truely transparent background? I have a PNG file of my company’s logo that has a translucent background. When I copy-paste the image into the layout editor and put it on a colored background, everything looks great. then I export it to a pdf. Still, everything looks great. but then when I go to print the pdf the background of the image does not match the color of the background that the image is on top of. How do I fix this?