Pdf showing as picture

I don't understand how to configure or why it is happening, but I have my company mail installed in both, my iphone and ipad.
On the iphone I can see pdf attachments in a normal way. Shows as attachment and I have to click on it in order to open it.

But in my ipad all pdf files are shown as images. Is there some way to configure this? As on Apple's ipad mail presentation video it works exactly as on my iphone.

I use a pdf reader app, so I would like to save the file there, but as the pdf shows like an image, I can only save it as image.


Thanking for your help.


Regards,

Samuli