I used a "design" program (brochures,etc) which came with my Brother printerMFC-J425W. I saved my project as an Adobe .pdf file. I can't open it as a saved file in Brother, but I can open it from a C:\Users file. I can't edit it. I can't print it. How can something so easy be so difficult? I don't think it could be a Brother problem only, inasmuch as the completed project exists in Adobe@.
While you can to some editing with Acrobat Pro, it is FAR better to make changes to your original document and then create a new PDF