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PHP PDF converter (SVG, XPS, TIFF, JPG, RTF, TXT, more)

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Sample PHP code to use PDFTron SDK for direct, high-quality conversion between PDF, XPS, EMF, SVG, TIFF, PNG, JPEG, and other image formats ('pdftron.PDF.Convert' namespace). The sample also shows how to convert any printable document (ex. TXT, RTF, Word, MS Office, DXF, DWG, etc) to PDF or XPS using a universal document converter. Learn more about our PHP PDF Library and PDF Conversion Library.

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// Copyright (c) 2001-2023 by Apryse Software Inc. All Rights Reserved.
// Consult LICENSE.txt regarding license information.

// The following sample illustrates how to use the PDF::Convert utility class to convert 
// documents and files to PDF, XPS, SVG, or EMF.
// Certain file formats such as XPS, EMF, PDF, and raster image formats can be directly 
// converted to PDF or XPS. Other formats are converted using a virtual driver. To check 
// if ToPDF (or ToXPS) require that PDFNet printer is installed use Convert::RequiresPrinter(filename). 
// The installing application must be run as administrator. The manifest for this sample 
// specifies appropriate the UAC elevation.
// Note: the PDFNet printer is a virtual XPS printer supported on Vista SP1 and Windows 7.
// For Windows XP SP2 or higher, or Vista SP0 you need to install the XPS Essentials Pack (or 
// equivalent redistributables). You can download the XPS Essentials Pack from:
// Windows XP Sp2 will also need the Microsoft Core XML Services (MSXML) 6.0:
// Note: Convert.FromEmf and Convert.ToEmf will only work on Windows and require GDI+.
// Please contact us if you have any questions.	

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

function ConvertToPdfFromFile()
	global $inputPath, $outputPath;

	$testfiles = array(
	array("butterfly.png", "png2pdf.pdf"),
	array("simple-xps.xps", "xps2pdf.pdf"),
    $ret = 0;
    foreach ($testfiles as &$testfile) {
			$pdfdoc = new PDFDoc();
			$inputFile = $testfile[0];
			$outputFile = $testfile[1];
			Convert::ToPdf($pdfdoc, $inputPath.$inputFile);
			$pdfdoc->Save($outputPath.$outputFile, SDFDoc::e_compatibility);
			echo(nl2br("Converted file: ".$inputFile."\n"));
			echo(nl2br("to: ".$outputFile."\n"));
		catch(Exception $e)
			$ret = 1;
	return $ret;

function ConvertSpecificFormats()
	global $inputPath, $outputPath;

	$pdfdoc = new PDFDoc();
	$s1 = $inputPath."simple-xps.xps";

	$ret = 0;
		// Convert the XPS document to PDF
		echo(nl2br("Converting from XPS\n"));
		Convert::FromXps($pdfdoc, $s1 );
		$outputFile = "xps2pdf v2.pdf";
		$pdfdoc->Save($outputPath.$outputFile, SDFDoc::e_remove_unused);
		echo(nl2br("Saved ".$outputFile."\n"));

		// Convert the TXT document to PDF
		$set = new ObjSet();
		$options = $set->CreateDict();
		// Put options
		$options->PutNumber("FontSize", 15);
		$options->PutBool("UseSourceCodeFormatting", true);
		$options->PutNumber("PageWidth", 12);
		$options->PutNumber("PageHeight", 6);
		$s1 = $inputPath . "simple-text.txt";
		echo(nl2br("Converting from txt\n"));
		Convert::FromText($pdfdoc, $s1);
		$outputFile = "simple-text.pdf";
		$pdfdoc->Save($outputPath.$outputFile, SDFDoc::e_remove_unused);
		echo(nl2br("Saved ".$outputFile ."\n"));
		// Convert the two page PDF document to SVG
		$pdfdoc = new PDFDoc($inputPath . "newsletter.pdf");
		echo(nl2br("Converting pdfdoc to SVG\n"));
		$outputFile = "pdf2svg v2.svg";
		Convert::ToSvg($pdfdoc, $outputPath.$outputFile);
		echo(nl2br("Saved ".$outputFile."\n"));

		// Convert the PNG image to XPS
		echo(nl2br("Converting PNG to XPS\n"));
		$outputFile = "butterfly.xps";
		Convert::ToXps($inputPath."butterfly.png", $outputPath.$outputFile);
		echo(nl2br("Saved ".$outputFile."\n"));

		// Convert PDF document to XPS
		echo(nl2br("Converting PDF to XPS\n"));
		$outputFile = "newsletter.xps";
		Convert::ToXps($inputPath."newsletter.pdf", $outputPath.$outputFile);
		echo(nl2br("Saved ".$outputFile."\n"));

		// Convert PDF document to HTML
		echo(nl2br("Converting PDF to HTML\n"));
		$outputFile = "newsletter";
		Convert::ToHtml($inputPath."newsletter.pdf", $outputPath.$outputFile);
		echo(nl2br("Saved newsletter as HTML\n"));

		// Convert PDF document to EPUB
		echo(nl2br("Converting PDF to EPUB\n"));
		$outputFile = "newsletter.epub";
		Convert::ToEpub($inputPath."newsletter.pdf", $outputPath.$outputFile);
		echo(nl2br("Saved ".$outputFile."\n"));

		echo(nl2br("Converting PDF to multipage TIFF\n"));
		$tiff_options = new TiffOutputOptions();
		Convert::ToTiff($inputPath . "newsletter.pdf", $outputPath. "newsletter.tiff", $tiff_options);
		echo(nl2br("Saved newsletter.tiff\n"));

		// Convert SVG file to PDF
		echo(nl2br("Converting SVG to PDF\n"));
		$pdfdoc = new PDFDoc();
		Convert::FromSVG($pdfdoc, $inputPath . "tiger.svg");
		$pdfdoc->Save($outputPath . "svg2pdf.pdf", SDFDoc::e_remove_unused);
		echo(nl2br("Saved svg2pdf.pdf\n"));
    catch(Exception $e){
        $ret = 1;
    return $ret;

function main()
	// The first step in every application using PDFNet is to initialize the 
	// library. The library is usually initialized only once, but calling 
	// Initialize() multiple times is also fine.
	global $LicenseKey;
	PDFNet::GetSystemFontList();    // Wait for fonts to be loaded if they haven't already. This is done because PHP can run into errors when shutting down if font loading is still in progress.
	// Demonstrate Convert::ToPdf and Convert::Printer
	$err = ConvertToPdfFromFile();
	if ($err)
		echo(nl2br("ConvertFile failed\n"));
		echo(nl2br("ConvertFile succeeded\n"));
	// Demonstrate Convert::[FromEmf, FromXps, ToEmf, ToSVG, ToXPS]
	$err = ConvertSpecificFormats();
	if ($err)
		echo(nl2br("ConvertSpecificFormats failed\n"));
		echo(nl2br("ConvertSpecificFormats succeeded\n"));