To import dynamic stamps from Acrobat Reader to Foxit PDF Editor for Mac, copy the original stamp files from Adobe Acrobat and paste them to: /Users/UserName/Library/Application Support/Foxit Software/Foxit PDF Editor/Stamps/UserStamps
Once the files are copy and pasted, the stamps will be directly recognized in Foxit PDF Editor for Mac.
Note: The Stamps folder can not be found if no custom dynamic stamp was created with Foxit PDF Editor before. Please click Here to check the detail instructions on how to create it first.