The simplest way is to lay out your print document and print to a PCL 5 or earlier printer driver. When you do this, go into the printer driver and select "Print to file". It should ask you for a file name that can then be saved off for future use.
Even if you do not have a PCL printer, you can install a PCL printer driver to generate print files from. Do an "Add printer" and select an H/P printer that supports the level of PCL you want. Then set the "Print to file" flag and use it to print through. The PCL file can then be used for subsequent printing, for overlays or for other reasons.