lass="underlined_10">Overview</h2>
<div class="section">
<p>
        Apache&trade; FOP supports encryption of PDF output, thanks to Patrick
        C. Lankswert. This feature is commonly used to prevent
        unauthorized viewing, printing, editing, copying text from the
        document and doing annotations. It is also possible to ask the
        user for a password in order to view the contents. Note that
        there already exist third party applications which can decrypt
        an encrypted PDF wi