I'm using ExpertPDF library to generate PDF. I had the same code on two different servers. On one of them PDF was generated as a text (I could mark text in pdf and copy). On the second server PDF was generated as a picture, so I couldn't mark text in PDF file.
What is the differenc? Where should I looking for an error?
Now, after installing windows updates on all servers PDF is generateing as a Picture. I think, that updates had main influence on that change, but I'm not shure.