Add XML namespace in XMP metadata of EPS |Java

In order to add XML namespace in XMP metadata of EPS file it is necessary to do several steps:

1. Initialize an input stream for input EPS file.
2. Create an instance of PsDocument from created earlier input stream.
3. Get an instance of XmpMetadata from the PsDocument. If given EPS file doesn’t contain XMP metadata the new one will be created, filled in with values from PS metadata comments and returned to you.
4. Now you can add new XML namespace to metadata.
5. Initialize an output stream for output EPS file.
6. Save EPS file with changed XMP metadata.

Following code snippet shows how to add XML namespace in XMP metadata in EPS file in Java:

// Set license
new License().setLicense(BaseExamplesTest.LICENSE_PATH);

// The path to the documents directory.
String dataDir = Utils.getDataDir();

// Initialize input EPS file stream
FileInputStream psStream = new FileInputStream(dataDir + "xmp3.eps");

PsDocument document = new PsDocument(psStream);

try {
    // Get XMP metadata. If EPS file doesn't contain XMP metadata we get new one filled with values from PS metadata comments (%%Creator, %%CreateDate, %%Title etc)
    XmpMetadata xmp = document.getXmpMetadata();

    // Add new XML namespace "http://www.some.org/schema/tmp#" with prefix "tmp"
    xmp.registerNamespaceURI("tmp", "http://www.some.org/schema/tmp#");
    
    //Add new property "tmp:newKey" in new XML namespace
    xmp.put("tmp:newKey", new XmpValue("NewValue"));
    
    
    // Initialize output EPS file stream
    FileOutputStream outPsStream = new FileOutputStream(dataDir + "xmp3_changed.eps");
    
    // Save document with changed XMP metadata
		try {			
			document.save(outPsStream);
		} finally {
			outPsStream.close();
		}

} finally {
    // close input EPS stream
		psStream.close();
}

See adding XMl namespace in XMP metadata in .NET and C++.

You can download examples and data files from GitHub.