Spire.Cloud.PDF offers an interface called PdfPropertiesApi to add, update or delete document properties in PDF. This tutorial will demonstrate how to use the interface to do it in Java.

Add/Update Document Properties

import spire.cloud.pdf.sdk.ApiException;
import spire.cloud.pdf.sdk.Configuration;
import spire.cloud.pdf.sdk.api.PdfPropertiesApi;
import spire.cloud.pdf.sdk.model.DocumentProperties;
import spire.cloud.pdf.sdk.model.DocumentProperty;
import java.util.ArrayList;


public class AddDocumentProperties {
    static String appId = "App ID";
    static String appKey = "App Key";
    static String baseUrl = "https://api.cloudxdocs.com";

    public static void main(String[] args) throws ApiException {
        //Create a Configuration object based on your App ID and App Key
        Configuration PdfConfiguration = new Configuration(appId, appKey, baseUrl);
        //Create a PdfPropertiesApi instance
        PdfPropertiesApi pdfPropertiesApi = new PdfPropertiesApi(PdfConfiguration);

        //Load a PDF sample
        String name = "Sample.pdf";
        //Specify the folder storing the sample, and it’s null if nothing
        String folder = "input";
        //Specify the password used to open the sample, and it's null if nothing
        String password = null;
        //Use the 2G storage provided by E-iceblue Cloud, and it’s null by default
        String storage = null;
        //Specify the storage path of the resulting document
        String outPath = "output/AddProperties.pdf";

        DocumentProperties properties = new DocumentProperties();
        properties.setList(new ArrayList());
        //Create built-in document properties
        DocumentProperty property = new DocumentProperty();
        property.setName("author");
        property.setValue("Jack Prelutsky");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("creator");
        property.setValue("Tina");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("keywords");
        property.setValue("Nose");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("producer");
        property.setValue("Daniel");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("subject");
        property.setValue("A English Poem");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("title");
        property.setValue("Be Glad Your Nose is on Your Face");
        properties.getList().add(property);

        //Create customized document properties
        property = new DocumentProperty();
        property.setName("Time");
        property.setValue("April 21st 2021");
        properties.getList().add(property);
        property = new DocumentProperty();
        property.setName("Place");
        property.setValue("China");
        properties.getList().add(property);

        //Call the addOrUpdateProperties method to add or update document properties for the PDF sample
        pdfPropertiesApi.addOrUpdateProperties(name, outPath, properties, folder, storage, password);
    }
}

Output

Delete Document Properties

import spire.cloud.pdf.sdk.ApiException;
import spire.cloud.pdf.sdk.Configuration;
import spire.cloud.pdf.sdk.api.PdfPropertiesApi;

public class DeleteDocumentProperties {
    static String appId = "App ID";
    static String appKey = "App Key";
    static String baseUrl = "https://api.cloudxdocs.com";
    public static void main(String[] args) throws ApiException {
        //Create a Configuration object based on your App ID and App Key
        Configuration PdfConfiguration = new Configuration(appId, appKey, baseUrl);
        //Create a PdfPropertiesApi instance
        PdfPropertiesApi pdfPropertiesApi = new PdfPropertiesApi(PdfConfiguration);

        //Load a PDF sample
        String name = "AddProperties.pdf";
        //Specify the folder storing the sample, and it’s null if nothing
        String folder = "input";
        //Specify the password used to open the sample, and it's null if nothing
        String password = null;
        //Use the 2G storage provided by E-iceblue Cloud, and it’s null by default
        String storage = null;
        //Specify the storage path of the resulting document
        String outPath = "output/DeleteProperties.pdf";

        //Call the deleteProperties method to delete document properties of the PDF sample
        pdfPropertiesApi.deleteProperties(name, outPath, folder, storage, password);
    }
}