Likewise the answers from the MVP's related to footers. The answer from Cam Church didn't work as it's not a header footer issue, I experiemented with their suggestion to test it. Commentary on affect of solution to my doc below each suggestion: The following suggested solutions have not worked satisfactorily as they throw out the entire documents format, extending its length significantly. Simply opened the original Word for PC doc using Word for Mac and made some edits. I have not changed any of the borders, margins, headers or footers sections. I receive the error message as stated in the question title. Since the original doc has been edited using Word for Mac I now cannot get the document to save to PDF without losing the bottom border The original Word for PC doc saved the borders perfectly when converting to PDF and they were all displayed in the PDF doc. The document contains nothing more complex than bullet points, tabs, italics, bold and Having created a document using Word 2010 for PC, utilising a standard MS border format, I'm now having problems when attempting to 'Save to PDF' from Word for Mac 2011.