The "Cover" option on the "Page" tab in the Report setup allows you to merge the report document with an additional file that will be considered the cover page of the report and placed directly at the beginning, before the table of contents, if it exists. By default, the cover page is specified in HTML format.
However, it is also possible to add the cover in PDF format. To do this, it is necessary to install the free PDF toolkit from:
https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/
Once the MxFrame reporting system recognizes the PDFtk utility as installed, it will be possible to add not only an HTML file but also a PDF file as the cover page of the report document. This will be reflected in the "Open" dialog window when specifying the path to the cover file - the supported formats field will display: "Cover files (*.pdf; *.html)".