Quick Start: Importing XMP metadata using the web service API

The following code example imports XMP metadata and saves the new PDF file to disk.

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.IO; 

namespace XMPUtilityWSApp

{

    class ImportMetadataTest

	{

		[STAThread]

		static void Main(string[] args)

		{

            try

            {

                // Create a XMPUtilityServiceService object

                XMPUtilityServiceService svc = new XMPUtilityServiceService();

                // Provide authentication credentials to the service

                svc.Credentials = new System.Net.NetworkCredential(

                    "administrator", 

                    "password"

                );

                // Create a BLOB that represents the input PDF file

                BLOB inDoc = new BLOB();

                // Specify a PDF document whose metadata is to be exported

                string inputFileName = "C:\\Sample2.pdf";

                FileStream fs = new FileStream(inputFileName, FileMode.Open);

                // Get the length of the file stream and create a byte array 

                int len = (int)fs.Length;

                byte[] byteArray = new byte[len];

                // Populate the byte array with the contents of the file stream

                fs.Read(byteArray, 0, len);

                // Populate the BLOB object

                inDoc.binaryData = byteArray;

                // Specify an XML file containing the XMP metadata to be imported

                BLOB xmpDoc = new BLOB();

                string xmpFileName = "C:\\Grant777.xml";

                FileStream xmpfs = new FileStream(xmpFileName, FileMode.Open);

                int xmplen = (int)xmpfs.Length;

                byte[] xmpByteArray = new byte[xmplen];

                xmpfs.Read(xmpByteArray, 0, xmplen);

                xmpDoc.binaryData = xmpByteArray;

			    // Import the XMP metadata from an XMP file

			    BLOB outDoc = svc.importXMP(inDoc, xmpDoc);

			    // Inspect the XMP metadata object (retrieve the document’s author in this case)

			    XMPUtilityMetadata myXmp = svc.exportMetadata(outDoc);

			    string name = myXmp.author;

			    Console.WriteLine("The document’s author is " + name);

                // Save the PDF document containing the new metadata

                byte[] outByteArray = outDoc.binaryData;

                string FILE_NAME = "C:\\Sample2WithMetadata.pdf";

                FileStream fs2 = new FileStream(FILE_NAME, FileMode.OpenOrCreate);

                BinaryWriter w = new BinaryWriter(fs2);

                w.Write(outByteArray);

                w.Close();

                fs2.Close();

                Console.WriteLine("The XMP metadata was imported into the PDF document.");

            }

            catch (Exception ee)

            {

                Console.WriteLine("An unexpected exception was encountered: " + ee.Message + "\n" + ee.StackTrace);

            }

        }

	}

}

 

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