I am facing similar problems as discussed in the below mentioned forum post https://support.mozilla.org/en-US/questions/1014746 PDF.js is not considering the enabled PDF security. The functionality what i want to achieve is to control the print to file option using tools like CutePDF. If a user tries to print the PDF to a file and PDF is created by setting encryption is opened in Adobe reader, the saved PDF will be blank. But this is not happening in PDF.js and it is saving the content of the PDF. Can this be handled in PDF.js?