locked as in with a password ..then there is a tool available to open it called Advanced PDF Password Recovery Pro by ElcomSoft ... hope this solves it
Download APDFPR Pro 2.21 (March 31, 2005; 1550K)
*www.elcomsoft.com/download/apdfprp.zip
there is no password . it just says that u dont hv permission to export the pics
having a permission is different from unlocking. to lock and unlock you use passwords. as far as the permission part goes, it has to be given at the time of creating the pdf file as to whether the users have permission to export pictures. If the permission was not granted then, i guess nothin can be done now. :roll:
Use PDF Encrypt from Digit CD/DVD.It was given in July DVD/CD(not sure).It worked for me.