"Layout" print option disappeared when printing PDF file from Google Drive

[ricohapp...@gmail.com]

Hi，

We have developed a chrome extension for print, and it provides several print options including "Layout", "Margins" and "Header and footers".

But we found that if we print PDF file from Google Drive, these 3 options will not show up.

If we print web page, the options are there correctly.

So my question is why these options couldn't show if printing PDF. Is it a specification of the printing options?

Many thanks.