<dependency>
    <groupId>com.groupdocs</groupId>
    <artifactId>groupdocs-merger-cloud</artifactId>
    <version>25.11</version>
</dependency>

ApiClient apiClient = new ApiClient("YOUR_CLIENT_ID", "YOUR_CLIENT_SECRET");
MergerApi mergerApi = new MergerApi(apiClient);

FileInfo sourceFile1 = new FileInfo();
sourceFile1.setFilePath("input1.pptx"); // first PPTX file

FileInfo sourceFile2 = new FileInfo();
sourceFile2.setFilePath("input2.ppt"); // second PPT file

List<FileInfo> sourceFiles = new ArrayList<>();
sourceFiles.add(sourceFile1);
sourceFiles.add(sourceFile2);

MergeOptions mergeOptions = new MergeOptions();
mergeOptions.setFileInfos(sourceFiles);          // files to be merged
mergeOptions.setOutputPath("merged_output.pptx"); // result file

MergeRequest mergeRequest = new MergeRequest(mergeOptions);
try {
    MergeResult mergeResult = mergerApi.merge(mergeRequest);
    System.out.println("Merge successful. Output file stored at: " + mergeResult.getPath());
} catch (Exception e) {
    System.err.println("An error occurred during merging: " + e.getMessage());
    e.printStackTrace();
}

import com.groupdocs.merger.cloud.ApiClient;
import com.groupdocs.merger.cloud.api.MergerApi;
import com.groupdocs.merger.cloud.model.FileInfo;
import com.groupdocs.merger.cloud.model.MergeOptions;
import com.groupdocs.merger.cloud.model.requests.MergeRequest;
import com.groupdocs.merger.cloud.model.responses.MergeResult;

import java.util.ArrayList;
import java.util.List;

public class PowerPointMergeExample {
    public static void main(String[] args) {
        // Initialize the API client with your credentials
        ApiClient apiClient = new ApiClient("YOUR_CLIENT_ID", "YOUR_CLIENT_SECRET");
        MergerApi mergerApi = new MergerApi(apiClient);

// Define the source PowerPoint files
        FileInfo sourceFile1 = new FileInfo();
        sourceFile1.setFilePath("input1.pptx"); // first PPTX file

FileInfo sourceFile2 = new FileInfo();
        sourceFile2.setFilePath("input2.ppt"); // second PPT file

List<FileInfo> sourceFiles = new ArrayList<>();
        sourceFiles.add(sourceFile1);
        sourceFiles.add(sourceFile2);

// Set merge options
        MergeOptions mergeOptions = new MergeOptions();
        mergeOptions.setFileInfos(sourceFiles);          // files to be merged
        mergeOptions.setOutputPath("merged_output.pptx"); // result file

// Create and execute the merge request
        MergeRequest mergeRequest = new MergeRequest(mergeOptions);
        try {
            MergeResult mergeResult = mergerApi.merge(mergeRequest);
            System.out.println("Merge successful. Output file stored at: " + mergeResult.getPath());
        } catch (Exception e) {
            System.err.println("An error occurred during merging: " + e.getMessage());
            e.printStackTrace();
        }
    }
}

curl -X POST "https://api.groupdocs.cloud/v2.0/authentication/token" \
  -H "Content-Type: application/json" \
  -d '{"client_id":"YOUR_CLIENT_ID","client_secret":"YOUR_CLIENT_SECRET"}'

curl -X POST "https://api.groupdocs.cloud/v2.0/storage/file/upload?path=input1.pptx" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -F "file=@/local/path/input1.pptx"

curl -X POST "https://api.groupdocs.cloud/v2.0/merger/merge" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
        "fileInfos": [
          {"filePath": "input1.pptx"},
          {"filePath": "input2.ppt"}
        ],
        "outputPath": "merged_output.pptx"
      }'

curl -X GET "https://api.groupdocs.cloud/v2.0/storage/file/download?path=merged_output.pptx" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -o merged_output.pptx

mergeOptions.setOutputPath("reports/combined_presentation.pptx");

mergeOptions.setPassword("StrongPassword123");

mergeOptions.setPreserveLayout(true);