Cloud API – PDF Merging – Java – Merge PDF Documents From URLs

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Cloud API – PDF Merging – Java – Merge PDF Documents From URLs
Cloud API – PDF Merging – Java – Merge PDF Documents From URLs

Main.java
package com.company;
 
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import okhttp3.*;
 
import java.io.*;
import java.nio.file.Path;
import java.nio.file.Paths;
 
public class Main
{
    // (!) If you are getting '(403) Forbidden' error please ensure you have set the correct API_KEY
 
    // The authentication key (API Key).
    // Get your own by registering at https://secure.bytescout.com/users/sign_up
    final static String API_KEY = "***********************************";
 
    // Direct URLs of PDF files to merge
    final static String[] SourceFiles = {
            "https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/pdf-merge/sample1.pdf",
            "https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/pdf-merge/sample2.pdf" };
    // Destination PDF file name
    final static Path DestinationFile = Paths.get(".\\result.pdf");
 
 
    public static void main(String[] args) throws IOException
    {
        // Create HTTP client instance
        OkHttpClient webClient = new OkHttpClient();
 
        // Prepare URL for `Merge PDF` API call
        String query = String.format(
                "https://api.pdf.co/v1/pdf/merge?name=%s&url=%s",
                DestinationFile.getFileName(),
                String.join(",", SourceFiles));
 
        // Prepare request
        Request request = new Request.Builder()
                .url(query)
                .addHeader("x-api-key", API_KEY) // (!) Set API Key
                .build();
        // Execute request
        Response response = webClient.newCall(request).execute();
 
        if (response.code() == 200)
        {
            // Parse JSON response
            JsonObject json = new JsonParser().parse(response.body().string()).getAsJsonObject();
 
            boolean error = json.get("error").getAsBoolean();
            if (!error)
            {
                // Get URL of generated PDF file
                String resultFileUrl = json.get("url").getAsString();
 
                // Download PDF file
                downloadFile(webClient, resultFileUrl, DestinationFile.toFile());
 
                System.out.printf("Generated PDF file saved as \"%s\" file.", DestinationFile.toString());
            }
            else
            {
                // Display service reported error
                System.out.println(json.get("message").getAsString());
            }
        }
        else
        {
            // Display request error
            System.out.println(response.code() + " " + response.message());
        }
    }
 
    public static void downloadFile(OkHttpClient webClient, String url, File destinationFile) throws IOException
    {
        // Prepare request
        Request request = new Request.Builder()
                .url(url)
                .build();
        // Execute request
        Response response = webClient.newCall(request).execute();
 
        byte[] fileBytes = response.body().bytes();
 
        // Save downloaded bytes to file
        OutputStream output = new FileOutputStream(destinationFile);
        output.write(fileBytes);
        output.flush();
        output.close();
 
        response.close();
    }
}
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Cloud API – PDF Merging – Java – Merge PDF Documents From URLs

Cloud API – PDF Merging – Java – Merge PDF Documents From URLs

Tutorials:
