dkpdfg_output_pdf_https_fix.php

<?php
/**
* Creates the PDF
*/
function dkpdfg_output_pdf() {

	// include mPDF library from DK PDF
	include( ABSPATH . '/wp-content/plugins/dk-pdf/includes/mpdf60/mpdf.php' );

	// page orientation
	$dkpdf_page_orientation = get_option( 'dkpdf_page_orientation', '' );

	if ( $dkpdf_page_orientation == 'horizontal') {
		$format = 'A4-L';
	} else {
		$format = 'A4';
	}

	// font size
	$dkpdf_font_size = get_option( 'dkpdf_font_size', '12' );
	$dkpdf_font_family = '';

	// margins
	$dkpdf_margin_left = get_option( 'dkpdf_margin_left', '15' );
	$dkpdf_margin_right = get_option( 'dkpdf_margin_right', '15' );
	$dkpdf_margin_top = get_option( 'dkpdf_margin_top', '50' );
	$dkpdf_margin_bottom = get_option( 'dkpdf_margin_bottom', '30' );
	$dkpdf_margin_header = get_option( 'dkpdf_margin_header', '15' );

	// creating and setting the pdf
	$mpdf = new mPDF('utf-8', $format, $dkpdf_font_size, $dkpdf_font_family,
		$dkpdf_margin_left, $dkpdf_margin_right, $dkpdf_margin_top, $dkpdf_margin_bottom, $dkpdf_margin_header
	);

    // write cover
    $dkpdf_show_cover = get_option( 'dkpdfg_show_cover', 'on' );

    if( $dkpdf_show_cover == 'on' ) {
	    $pdf_cover = dkpdfg_get_template( 'dkpdfg-cover' );
	    $mpdf->WriteHTML( $pdf_cover );
    }

	// write TOC
	$dkpdf_show_toc = get_option( 'dkpdfg_show_toc', 'on' );

	if( $dkpdf_show_toc == 'on' ) {

		$toc_title = get_option( 'dkpdfg_toc_title', 'Table of contents' );

		$mpdf->WriteHTML('<tocpagebreak toc-preHTML="&lt;h2&gt;'. $toc_title .'&lt;/h2&gt;"  paging="on" links="on" resetpagenum="1" toc-odd-footer-value="-1" toc-odd-header-value="-1" />');
		$mpdf->h2toc = array( 'H1'=>0 );
		$mpdf->h2bookmarks = array( 'H1'=>0 );

	}

	// header
	$pdf_header_html = dkpdf_get_template( 'dkpdf-header' );
	$mpdf->SetHTMLHeader( $pdf_header_html, 'O', TRUE );

    // footer
    $pdf_footer_html = dkpdf_get_template( 'dkpdf-footer' );
    $mpdf->SetHTMLFooter( $pdf_footer_html );

	// write content
	$mpdf->WriteHTML( dkpdfg_get_template( 'dkpdfg-index' ) );

	// output PDF
	$mpdf->Output();
	//$mpdf->Output( 'dk-pdf-generator.pdf', 'D' );

	/*
	$cover_title = get_option( 'dkpdfg_cover_title', '' );

	if( $cover_title != '' ) {

		$mpdf->Output( $cover_title . '.pdf', 'D' );

	} else {

		$mpdf->Output( 'dk-pdf-generator.pdf', 'D' );

	}
	*/
}