VBA Page Setup when using ExportAsPdf

It seems that a reasonably safe scenario should look like this:
1. examine the name of the active printer. If it is a printer that supports A4 or Legal, then you can export the sheet to PDF
2. if it is a label printer, remember the printer name (to return to it in the future) and then set the active printer to one that supports A4 or Legal. This can be a physical printer (but here the problem arises that you need to check if it is installed on your computer) or a virtual printer, such as "Microsoft Print to PDF" (which I think is already installed with the system). We don't need to use it for printing. It's just a matter of temporarily changing the printer driver to one that supports the appropriate paper formats.
3 Set the area to be printed and the paper size, programmatically.
4. issue a command to export the sheet to PDF.
5. restore as active the printer stored in step 2.

The above instruction is probably imperfect, but at least it points in the direction you should go.

Artik