Direct in Print Dialog on opening PDF document

If i open a pdf document direct through web browser the print preparation window opens and the printer dialog pops up instead of just opening the document. This doesnt happen on all pdf documents. Most of the documents open normally, but there are some documents where the printer dialog opens up. I cant reproduce what is different on these documents. I have 20.0.0.8 installed. I also tried with different browsers, which doesnt’t make a difference.