Adobe Acrobat X "crop" is in grey
Good day,
I have a question about Adobe Acrobat X: With the tool "crop" I can open a frame to crop a PDF. If I open the frame and then press enter, the "Set page frame" window opens. However, the "Trim edges" area is grayed out ... I cannot enter anything there. I have a new PC and have reinstalled Adobe Acrobat X there. On my old PC I was able to cut PDFs and also enter millimeter information. Now that is no longer possible. I tried the PDF with which I cannot set anything with Adobe Acrobat on my colleague's computer and there was no "trimming edges" grayed out.
What could that be?

