Remove Annotations from PDF using Java REST API https://kb.groupdocs.cloud/annotation/java/remove-annotations-from-pdf-using-java-rest-api/

remove-annotations-from-pdf-using-java-rest-api.java

package com.groupdocs;
import com.groupdocs.cloud.annotation.client.*;
import com.groupdocs.cloud.annotation.api.*;
import com.groupdocs.cloud.annotation.model.*;
import com.groupdocs.cloud.annotation.model.requests.*;
import java.util.ArrayList;
import java.util.List;

public class RemoveAnnotationsFromPDF {
    
    public static void main(String[] args) {

        // Configure your API credentials for authentication
        String MyAppKey = "your-app-key"; 
        String MyAppSid = "your-app-sid";
        Configuration configuration = new Configuration(MyAppKey, MyAppSid);

        // Initialize the AnnotateApi class
        AnnotateApi annotationApi = new AnnotateApi(configuration);

        try {

            // Configure source file info
            FileInfo fileInfo = new FileInfo();
            fileInfo.setFilePath("SampleFiles/source.pdf");

            // Retrieve all existing PDF annotations
            ExtractRequest extraction = new ExtractRequest();
            extraction.setfileInfo(fileInfo);
            List<AnnotationInfo> annotations = annotationApi.extract(extraction);

            // Collect all annotation IDs
            List<Integer> annotationIds = new ArrayList<>();
            for (AnnotationInfo annotation : annotations) {
                annotationIds.add(annotation.getId());
            }
            
            // Apply removal options, including the output file path
            RemoveOptions options = new RemoveOptions();
            options.setFileInfo(fileInfo);        
            options.setAnnotationIds(annotationIds);
            options.setOutputPath("annotation/output.pdf");
            
            // Create and execute the request to remove annotations from PDF
            RemoveAnnotationsRequest request = new RemoveAnnotationsRequest(options);
            AnnotationApiLink result = annotationApi.removeAnnotations(request);

        } catch (Exception e) {
            System.err.println("An error occurred: " + e.getMessage());
        }
    }
}