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Create Unicode Text or Embed Composite Fonts in PDF Files Using PHP

Sample PHP code for using PDFTron SDK to create Unicode text and embed composite fonts in PDF files.

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Step 2: Add the code:

// Copyright (c) 2001-2014 by PDFTron Systems Inc. All Rights Reserved.
// Consult LICENSE.txt regarding license information.

// Relative path to the folder containing the test files.
$input_path = getcwd()."/../../TestFiles/";
$output_path = $input_path."Output/";

// This example illustrates how to create Unicode text and how to embed composite fonts.
// Note: This demo assumes that 'arialuni.ttf' is present in '/Samples/TestFiles' 
// directory. Arial Unicode MS is about 24MB in size and it comes together with Windows and 
// MS Office.
function main()
    global $input_path, $output_path;


	$doc = new PDFDoc();

	$builder = new ElementBuilder();	
	$writer = new ElementWriter();	

	// Start a new page ------------------------------------
	$page = $doc->PageCreate(new Rect(0.0, 0.0, 612.0, 794.0));

	$writer->Begin($page);	// begin writing to this page

	// Embed and subset the font
    $font_program = $input_path."ARIALUNI.TTF";
    if (!file_exists($font_program)) {
        if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
            $font_program = "C:/Windows/Fonts/ARIALUNI.TTF";
            echo(nl2br("Note: Using ARIALUNI.TTF from C:/Windows/Fonts directory.\n"));
        else {
            echo(nl2br("Error: Cannot find ARIALUNI.TTF.\n"));
    $fnt = Font::CreateCIDTrueTypeFont($doc->GetSDFDoc(), $font_program, true, true);

	$element = $builder->CreateTextBegin($fnt, 1.0);
	$element->SetTextMatrix(10.0, 0.0, 0.0, 10.0, 50.0, 600.0);
	$element->GetGState()->SetLeading(2);		 // Set the spacing between lines

	// Hello World!
	$hello = array( 'H','e','l','l','o',' ','W','o','r','l','d','!');
	$writer->WriteElement($builder->CreateUnicodeTextRun($hello, count($hello)));

	// Latin
	$latin = array(   
		'a', 'A', 'b', 'B', 'c', 'C', 'd', 'D', 0x45, 0x0046, 0x00C0, 
		0x00C1, 0x00C2, 0x0143, 0x0144, 0x0145, 0x0152, '1', '2' // etc.
	$writer->WriteElement($builder->CreateUnicodeTextRun($latin, count($latin)));

	// Greek
	$greek = array(   
		0x039E, 0x039F, 0x03A0, 0x03A1,0x03A3, 0x03A6, 0x03A8, 0x03A9  // etc.
	$writer->WriteElement($builder->CreateUnicodeTextRun($greek, count($greek)));

        // Cyrillic
	$cyrillic = array(   
		0x0409, 0x040A, 0x040B, 0x040C, 0x040E, 0x040F, 0x0410, 0x0411,
		0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419 // etc.
	$writer->WriteElement($builder->CreateUnicodeTextRun($cyrillic, count($cyrillic)));

        // Hebrew
	$hebrew = array(
		0x05D0, 0x05D1, 0x05D3, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8, 
		0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF, 0x05E0, 0x05E1 // etc. 
	$writer->WriteElement($builder->CreateUnicodeTextRun($hebrew, count($hebrew)));

        // Arabic
	$arabic = array(
		0x0624, 0x0625, 0x0626, 0x0627, 0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 
		0x062D, 0x062E, 0x062F, 0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635 // etc. 
	$writer->WriteElement($builder->CreateUnicodeTextRun($arabic, count($arabic)));

	// Thai 
	$thai = array(
		0x0E01, 0x0E02, 0x0E03, 0x0E04, 0x0E05, 0x0E06, 0x0E07, 0x0E08, 0x0E09, 
		0x0E0A, 0x0E0B, 0x0E0C, 0x0E0D, 0x0E0E, 0x0E0F, 0x0E10, 0x0E11, 0x0E12 // etc. 
	$writer->WriteElement($builder->CreateUnicodeTextRun($thai, count($thai)));

	// Hiragana - Japanese 
	$hiragana = array(
		0x3041, 0x3042, 0x3043, 0x3044, 0x3045, 0x3046, 0x3047, 0x3048, 0x3049, 
		0x304A, 0x304B, 0x304C, 0x304D, 0x304E, 0x304F, 0x3051, 0x3051, 0x3052 // etc. 
	$writer->WriteElement($builder->CreateUnicodeTextRun($hiragana, count($hiragana)));

	// CJK Unified Ideographs
	$cjk_uni = array(
		0x5841, 0x5842, 0x5843, 0x5844, 0x5845, 0x5846, 0x5847, 0x5848, 0x5849, 
		0x584A, 0x584B, 0x584C, 0x584D, 0x584E, 0x584F, 0x5850, 0x5851, 0x5852 // etc. 
	$writer->WriteElement($builder->CreateUnicodeTextRun($cjk_uni, count($cjk_uni)));

	// Simplified Chinese
	$chinese_simplified = array(
		0x4e16, 0x754c, 0x60a8, 0x597d
	$writer->WriteElement($builder->CreateUnicodeTextRun($chinese_simplified, count($chinese_simplified)));

	// Finish the block of text

	$writer->End();  // save changes to the current page

	$doc->Save($output_path."unicodewrite.pdf", SDFDoc::e_remove_unused | SDFDoc::e_hex_strings);
	echo "Done. Result saved in unicodewrite.pdf...\n";