Momence does not currently have a pdf option. But you can download payroll reports (and others), open them with a spreadsheet app like Excel, Numbers, or Sheets, and save them as PDFs.

To see your options > download the file from the reports page your on in Momence.

Open your downloads folder and right click the file > then click 'Open with'. Here's how it looks on a mac. It should be similar on a PC.

Within each app, there should be a PDF option. For instance, in the Numbers app, use File > Export To > PDF.