On low-resolution devices, you can make the extended printing options visible by first clicking More options and then pressing the down arrow key a few times.
On my device with a screen resolution of only 1024x600 the customization area on the left side looks like this after calling the print command,
and like this after clicking on "More options" and pressing the down arrow key several times:
Opera 60.0.3255.170 on Windows 7 32-bit, "stand-alone installation (USB)"
They're mov files. They're not supported by Opera or Chrome. You need to download them and play them with a local player. Chrome just downloads them but Opera tries to play them instead. Just right-click on the links and choose "save linked content as" to download them and then open them in a player that supports them.
Goto http://demo.borland.com/testsite/download_testpage.php and select the PDF file in the download list. Select "Direct Link" for the "Download Kind". Then, select "No Content-Disposition Header" for the "Content-Disposition HTTP Header" and click "Download".
Then, do the same, but select "Attachment".
That'll show you how it's up to the site.
Reddit discussion on this too. https://www.reddit.com/r/operabrowser/comments/c36wd9/problem_when_clicking_links_from_emails/
(I'll respond here or there when I get a chance. What version of Windows though?)
I was able to resolve this problem, but I can't remember what the fix was.
I had posted the problem on several forums, but could not retrace my history to find out which response and which forum had the fix.
I believe it had something to do with either an Opera setting or Windows display setting. As I recall, it wasn't something very intuitive.
Sorry I can't be of more help.