Hello! Unfortunately, Nitro PDF does not offer a version of their software specifically for Mac computers. However, there are several alternative PDF editors and readers available for Mac that you can use. Some popular options for Mac users include Adobe Acrobat Reader, Preview (built-in with Mac OS), PDF Expert, and Skim. These tools offer a range of features for viewing, editing, and annotating PDF files on your Macbook. Let me know if you need more information or assistance with any of these alternatives!