Issue: My document does not append into an existing PDF file after selecting the Concatenate option when printing to PDF.
You can append a document into an existing PDF file instead of overwriting the PDF file (by default a *.pdf file is overwritten if it already exists). To do this, on HOME tab, in the Output group, click Create to open the Print dialog, which is preset to use the MapInfo PDF Printer. In the Output File Name dialog, select the PDF already created and then check the Concatenate check box. The PDF Printer will then append your document to the existing PDF file.
Fix: Ensure that the existing (target) PDF file that you are appending into is closed before using the Concatenate option.