Dart

Add XMP MetaData to JPG or TIFF

See more XMP Examples

Demonstrates how to add XMP metadata to a JPG or TIFF image that doesn't already have XMP metadata. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final xmp = CkXmp();

  // The first step is to create a new XMP document, which is nothing
  // more than XML.  The NewXmp method returns an XML document with
  // the standard XMP boilerplate.  
  final xml = xmp.newXmp();

  // Add some properties...
  xmp.addSimpleStr(xml, 'Iptc4xmpCore:Chilkat', 'Blah blah');
  // If you wish to view the XML, save it to a file and review it
  // with a text editor:
  try {
    xml.saveXml('newXmp.xml');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // To add the XMP to the JPG (or TIFF), simply load the JPG,
  // append the XMP, and save:
  try {
    xmp.loadAppFile('scream.jpg');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  try {
    xmp.append(xml);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  try {
    xmp.saveAppFile('screamOut.jpg');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }
}