Working with IPTC IIM metadata Leave feedback

The IPTC Information Interchange Model (IIM) is a set of metadata properties that can be applied to text, images, and other media types. The standard also defines a complex data structure that is utilized to store the properties. The IPTC IIM was developed by the International Press Telecommunications Council (IPTC) to expedite the international exchange of news among newspapers and news agencies. But nowadays it’s commonly used by amateur and commercial photographers. The standard is supported by many image creation and manipulation programs. IPTC IIM metadata can be embedded into a variety of image formats such as JPEG, TIFF, etc.

Note

For more information on the IPTC IIM standard please refer to https://www.iptc.org/std/IIM/4.2/specification/IIMV4.2.pdf.

To access IPTC metadata in a file of any supported format, GroupDocs.Metadata provides the IIptc.getIptcPackage method. The following are the steps to read IPTC metadata:

1. Load a file that contains IPTC metadata
2. Extract the IPTC metadata package using the IIptc.getIptcPackage method
3. Read properties of the IptcApplicationRecord class instances

The following code snippet gets IPTC properties of a JPEG image and displays them on the screen. 

advanced_usage.working_with_metadata_standards.iptc.ReadBasicIptcProperties

const metadata = new groupdocs.metadata.Metadata(Constants.JpegWithIptc);
    var root = metadata.getRootPackage();
            if (root.getIptcPackage() != null) {
                if (root.getIptcPackage().getEnvelopeRecord() != null) {
                    console.log(root.getIptcPackage().getEnvelopeRecord().getDateSent());
                    console.log(root.getIptcPackage().getEnvelopeRecord().getDestination());
                    console.log(root.getIptcPackage().getEnvelopeRecord().getFileFormat());
                    console.log(root.getIptcPackage().getEnvelopeRecord().getFileFormatVersion());

                    // ...
                }

                if (root.getIptcPackage().getApplicationRecord() != null) {
                    console.log(root.getIptcPackage().getApplicationRecord().getHeadline());
                    console.log(root.getIptcPackage().getApplicationRecord().getByLine());
                }   
            }

To remove the IPTC package from a file just pass null to the IIptc.setIptcPackage method as a parameter. The code sample below shows how to remove IPTC metadata from a file.

advanced_usage.working_with_metadata_standards.iptc.RemoveIptcMetadata

const metadata = new groupdocs.metadata.Metadata(Constants.JpegWithIptc);
    var root = metadata.getRootPackage();
    root.setIptcPackage(null);
    metadata.save(Constants.OutputJpeg);

To learn more about library features and get familiar how to manage metadata and more, please refer to theadvanced usage section.

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Metadata for .NET examples

• GroupDocs.Metadata for Java examples

• GroupDocs.Metadata for Node.js via Java examples

Along with a full featured Java library we provide simple, but powerful free Apps.

You are welcome to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images and more with our free online Free Online Document Metadata Viewing and Editing App.