Printing Aatrix W2s to PDF

I have a client who is processing almost 2,000 W2s this year.  I've been able to work my way to the printing functionality.  However, I can't seem to get the W2s to print to PDF - I get no prompt for the destination of the PDF file.  I have checked with other forms, and they seem to work properly.  Is there some sort of limit on how many W2s can be printed to PDF?

I'd appreciate any thoughts on this.

Thanks,

Mary