\documentclass{article}
\usepackage{docassembly}
\usepackage{lipsum}

\hypersetup{pdfpagemode=UseNone}

% Look in the Adobe Acrobat JavaScript manual under the doc.saveAs() to see all the possible parameters.
\begin{docassembly}
% save a copy of this PDF for the archives
var retn=\docSaveAs({
  cPath: "\jobname-copy.pdf",
  bCopy: true
});
% This method can also be used to make conversions, for example, you can save a PDF as a PNG
% Here, we make a PNG image of each page in this document.
var retn=\docSaveAs({
  cConvID: "com.adobe.acrobat.png",
  cPath: "\jobname.png"
});
\executeSave();
\end{docassembly}

\begin{document}

\lipsum[1-30]

\end{document} 