     impossiible to disregard restrictions in PDF processing tools.
      </p>
<p>
        A user password, supplied with the <span class="codefrag">-u</span> option, will
        cause the PDF display software to ask the reader for this password in
        order to view the contents of the document. If no user password was
        supplied, viewing the content is not restricted.
      </p>
<p>
        Further restrictions can be imposed by using the following command-line options:
        <table class="For