I have a PDF which is generated by a database. When I open it in Gmail preview, it is in color. However when I save it to my hard drive (Windows 10) and open it in Acrobat DC, it only displays in black and white. Help!
There is a possibility that Accessibility options turned on in Acrobat under preferences? Go to Edit > Preferences > Accessibility > Replace Document Colors?
You may refer to the following forum thread discussing the similar issue: Color documents changed to black and white
Let us know if you need any help.