You can modify the crop marks by editing the DefaultUser.properties file.
DefaultUser.properties if the software is running.DefaultUser.properties file (in the Pandoraversion folder).Pandoraversion\Resources\BuiltInMarks.Cropmark.PDFFile=<yourfilename>. Type the name of the mark file you want to use; for example, Cropmark.PDFFile=<yourfilename>.pdf.Cropmark.OffsetX and Cropmark.OffsetY, type the distance in points you want to offset the crop marks.