Taken from http://www.adobe.com/supportservice/devrelations/PDFS/TN/PDFSPEC.TXT
PDF Reference Manual March 1, 1996 Appendix A: Example PDF Files 220 Appendix A: Example PDF Files Example A.1 Minimal PDF file %PDF-1.0 1 0 obj << /Type /Catalog /Pages 3 0 R /Outlines 2 0 R >> endobj 2 0 obj << /Type /Outlines /Count 0 >> endobj 3 0 obj << /Type /Pages /Count 1 /Kids [ 4 0 R ] >> endobj 4 0 obj << /Type /Page /Parent 3 0 R /Resources << /ProcSet 6 0 R >> /MediaBox [ 0 0 612 792 ] /Contents 5 0 R >> endobj 5 0 obj << /Length 35 >> stream %place page marking operators here endstream endobj 6 0 obj [ /PDF ] endobj xref