// Copyright (C) 2003-2026, Foxit Software Inc..
// All Rights Reserved.
//
// http://www.foxitsoftware.com
//
// The following code is copyrighted and contains proprietary information and trade secrets of Foxit Software Inc..
// You cannot distribute any part of Foxit PDF SDK to any third party or general public,
// unless there is a separate license agreement with Foxit Software Inc. which explicitly grants you such rights.
//
// This file contains an example to demonstrate how to use Foxit PDF SDK to do optimize in PDF documents under a folder.
import com.foxit.sdk.PDFException;
import com.foxit.sdk.common.Library;
import com.foxit.sdk.common.Progressive;
import com.foxit.sdk.common.Constants;
import com.foxit.sdk.common.fxcrt.PauseCallback;
import com.foxit.sdk.pdf.PDFDoc;
import com.foxit.sdk.pdf.PDFPage;
import com.foxit.sdk.addon.*;
import com.foxit.sdk.addon.optimization.*;
import com.foxit.sdk.addon.optimization.Optimizer;

import java.io.File;
import static java.lang.Math.max;
import static java.lang.StrictMath.ceil;
import static com.foxit.sdk.common.Constants.e_ErrSuccess;
import static com.foxit.sdk.common.Constants.e_ErrInvalidLicense;
import static com.foxit.sdk.pdf.PDFDoc.e_SaveFlagRemoveRedundantObjects;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_OptimizerCompressImages;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_OptimizerCleanUp;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_OptimizerDiscardObjects;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_CleanUpRemoveInvalidBookmarks;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_CleanUpRemoveInvalidLinks;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_CleanUpUseFlateForNonEncodedStream;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_CleanUpUseFlateInsteadOfLZW;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsBookmarks;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsEmbeddedPageThumbnails;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsEmbeddedPrintSettings;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsFlattenFormFields;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsFormActions;
import static com.foxit.sdk.addon.optimization.OptimizerSettings.e_DiscardObjectsJavaScriptActions;

public class optimization {
	private static String key = "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";
	private static String sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
    private static String output_path = "../output_files/optimization/";
    private static String input_path = "../input_files/optimization/";

    // You can also use System.load("filename") instead. The filename argument must be an absolute path name.
	static {
	  String os = System.getProperty("os.name").toLowerCase();
	  String lib = "fsdk_java_";
	  if (os.startsWith("win")) {
	      lib += "win";
	  } else if (os.startsWith("mac")) {
	      lib += "mac";
	  } else {
	      lib += "linux";
	  }
        
      if (System.getProperty("sun.arch.data.model").equals("64")) {
        if(System.getProperty("os.arch").equals("aarch64")){
          if(os.startsWith("mac")){
             lib += "arm";
           }
           else{
             lib += "armv8";
           }
         }
         else{
            lib += "64";
         }
      } else {
         if(System.getProperty("os.arch").equals("arm")){
            lib += "armv7";
         }
         else{
            lib += "32";
         }
      }
	  System.loadLibrary(lib);
	}

   private static void createResultFolder(String output_path) {
			File myPath = new File(output_path);
			if (!myPath.exists()) {
				myPath.mkdir();
			}
		}
   public static void main(String[] args) throws PDFException {
	        // Initialize library
	        int error_code = Library.initialize(sn, key);
	        if (error_code != e_ErrSuccess) {
	            System.out.println("Library Initialize Error: " + error_code);
	            return;
	        }
	        createResultFolder(output_path);
	        String input_file = input_path + "[Optimize]ImageCompression.pdf";
	        System.out.println("Optimized Start : Image Compression.");
	        try {
	        	PDFDoc doc = new PDFDoc(input_file);
	            error_code = doc.load(null);
	            if (error_code != e_ErrSuccess) {
	                System.out.println("The Doc [" +  input_file + " Error: " +  error_code);
	                return;
	            }
	            PauseUtil pause = new PauseUtil();
	            OptimizerSettings settings = new OptimizerSettings();
				settings.setOptimizerOptions(e_OptimizerCompressImages);
	            Progressive progressive = Optimizer.optimize(doc, settings, pause);
	            int state = Progressive.e_ToBeContinued;
	            while (state == Progressive.e_ToBeContinued) {
	                state = progressive.resume();
	                int rate = progressive.getRateOfProgress();
	                System.out.println("Optimize progress percent: " +  rate + "%");
	            }
	            if(state == Progressive.e_Finished)
	            {
	            	doc.saveAs(output_path + "ImageCompression_Optimized.pdf", e_SaveFlagRemoveRedundantObjects);
	            }
	        } catch (PDFException e) {
	            e.printStackTrace();
				return;
	        }
	        System.out.println("Optimized Finish : Image Compression.");	        
			
			input_file = input_path + "[Optimize]Cleanup.pdf";
			System.out.println("Optimized Start : Clean up.");
	        try {
	        	PDFDoc doc = new PDFDoc(input_file);
	            error_code = doc.load(null);
	            if (error_code != e_ErrSuccess) {
	                System.out.println("The Doc [" +  input_file + " Error: " +  error_code);
	                return;
	            }
	            PauseUtil pause = new PauseUtil();
	            OptimizerSettings settings = new OptimizerSettings();
				settings.setOptimizerOptions(e_OptimizerCleanUp);
				settings.setCleanUpOptions(e_CleanUpRemoveInvalidBookmarks | e_CleanUpRemoveInvalidLinks
      | e_CleanUpUseFlateForNonEncodedStream | e_CleanUpUseFlateInsteadOfLZW);
	  	        Progressive progressive = Optimizer.optimize(doc, settings, pause);
	            int state = Progressive.e_ToBeContinued;
	            while (state == Progressive.e_ToBeContinued) {
	                state = progressive.resume();
	                int rate = progressive.getRateOfProgress();
	                System.out.println("Optimize progress percent: " +  rate + "%");
	            }
	            if(state == Progressive.e_Finished)
	            {
	            	doc.saveAs(output_path + "Cleanup_Optimized.pdf", e_SaveFlagRemoveRedundantObjects);
	            }
	        } catch (PDFException e) {
	            e.printStackTrace();
				return;
	        }
	        System.out.println("Optimized Finish : Clean up.");	    
			
			System.out.println("Optimized Start : Discard Objects.");
			input_file = input_path + "[Optimize]DiscardObjects.pdf";
	        try {
	        	PDFDoc doc = new PDFDoc(input_file);
	            error_code = doc.load(null);
	            if (error_code != e_ErrSuccess) {
	                System.out.println("The Doc [" +  input_file + " Error: " +  error_code);
	                return;
	            }
	            PauseUtil pause = new PauseUtil();
	            OptimizerSettings settings = new OptimizerSettings();

				settings.setOptimizerOptions(e_OptimizerDiscardObjects);
				settings.setDiscardObjectsOptions(e_DiscardObjectsBookmarks | e_DiscardObjectsEmbeddedPageThumbnails
      | e_DiscardObjectsEmbeddedPrintSettings | e_DiscardObjectsFlattenFormFields | e_DiscardObjectsFormActions | e_DiscardObjectsJavaScriptActions);
	            int state = Progressive.e_ToBeContinued;
				Progressive progressive = Optimizer.optimize(doc, settings, pause);
	            while (state == Progressive.e_ToBeContinued) {
	                state = progressive.resume();
	                int rate = progressive.getRateOfProgress();
	                System.out.println("Optimize progress percent: " +  rate + "%");
	            }
	            if(state == Progressive.e_Finished)
	            {
	            	doc.saveAs(output_path + "DiscardObjects_Optimized.pdf", e_SaveFlagRemoveRedundantObjects);
	            }
	        } catch (PDFException e) {
	            e.printStackTrace();
				return;
	        }
	        System.out.println("Optimized Finish : Discard Objects.");	    
			
	        Library.release();
	    }
	}

	class PauseUtil extends PauseCallback{
 
	    public PauseUtil() {
	    }
	 
	    @Override
	    public boolean needToPauseNow() {
	    	return true;
	    }
    }