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PDFFile Constructor()

Summary
Initializes a new PDFFile object with default parameters.
Syntax
C#
C++/CLI
Java
Python
public PDFFile() 
public PDFFile(); 
public: 
PDFFile(); 
__init__() # Default constructor 
Remarks

This constructor will initialize the properties of the PDFFile object as follows:

Before using any of the methods and properties of this PDFFile, you must set the FileName and optionally, the Password property to valid values.

After you set the filename and optional password, call the Load method to populate the DocumentProperties and Pages properties of this PDFFile object with the correct values read from the file. Or use any of the other file feature functions supported by this class.

In certain situations, you may want to associate a PDFFile with a Postscript and not a PDF file (for example, to create a PDFFile object and call its Distill method to convert the Postscript file to PDF).

Example
C#
Java
using Leadtools.WinForms; 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Controls; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.Pdf; 
using Leadtools.Svg; 
 
 
public void PDFFileExample() 
{ 
   string sourceFileName = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, @"LEAD_14.pdf"); 
 
   // Load the properties of the file 
   ShowProperties("Source file", sourceFileName); 
 
   // Update the properties of the file 
   PDFFile file = new PDFFile(sourceFileName); 
   file.DocumentProperties = new PDFDocumentProperties(); 
   file.DocumentProperties.Author = "Me"; 
   file.DocumentProperties.Title = "My title"; 
   file.DocumentProperties.Subject = "My subject"; 
   file.DocumentProperties.Creator = "My application"; 
   file.DocumentProperties.Modified = DateTime.Now; 
   file.SetDocumentProperties(destFileName); 
 
   // Show the properties of the new file 
   ShowProperties("Destination file", destFileName); 
} 
 
private static void ShowProperties(string message, string fileName) 
{ 
   Console.WriteLine(message); 
 
   // Get the properties of the file 
   PDFFile file = new PDFFile(fileName); 
   file.Load(); 
 
   PDFDocumentProperties props = file.DocumentProperties; 
 
   Console.WriteLine("  Title: {0}", props.Title); 
   Console.WriteLine("  Author: {0}", props.Author); 
   Console.WriteLine("  Subject: {0}", props.Subject); 
   Console.WriteLine("  Keywords: {0}", props.Keywords); 
   Console.WriteLine("  Creator: {0}", props.Creator); 
   Console.WriteLine("  Producer: {0}", props.Producer); 
   Console.WriteLine("  Created: {0}", props.Created); 
   Console.WriteLine("  Modified: {0}", props.Modified); 
   Console.WriteLine("----------:"); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.io.ByteArrayInputStream; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.FileOutputStream; 
import java.io.FileReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.nio.file.Files; 
import java.nio.file.Paths; 
import java.nio.file.StandardCopyOption; 
import java.util.ArrayList; 
import java.util.Date; 
import java.util.List; 
import java.util.Scanner; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.pdf.*; 
 
 
public void pdfFileExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String sourceFileName = combine(LEAD_VARS_IMAGES_DIR, "Leadtools.pdf"); 
   String destFileName = combine(LEAD_VARS_IMAGES_DIR, "LEAD_14.pdf"); 
 
   // Load the properties of the file 
   pdfShowProperties("Source file", sourceFileName); 
 
   // Update the properties of the file 
   PDFFile file = new PDFFile(sourceFileName); 
   PDFDocumentProperties properties = new PDFDocumentProperties(); 
   properties.setAuthor("Me"); 
   properties.setTitle("My title"); 
   properties.setSubject("My subject"); 
   properties.setCreator("My application"); 
   properties.setModified(new Date()); 
   file.setDocumentProperties(properties); 
   file.extractPages(1, file.getPageCount(), destFileName); 
 
   // Show the properties of the new file 
   pdfShowProperties("Destination file", destFileName); 
 
   PDFFile savedFile = new PDFFile(destFileName); 
   savedFile.load(); 
   assertTrue(savedFile.getDocumentProperties().getAuthor().equals("Me")); 
} 
 
private static void pdfShowProperties(String message, String fileName) { 
 
   System.out.println(message); 
 
   // Get the properties of the file 
   PDFFile file = new PDFFile(fileName); 
   file.load(); 
 
   PDFDocumentProperties props = file.getDocumentProperties(); 
 
   System.out.printf("  Title: %s%n", props.getTitle()); 
   System.out.printf("  Author: %s%n", props.getAuthor()); 
   System.out.printf("  Subject: %s%n", props.getSubject()); 
   System.out.printf("  Keywords: %s%n", props.getKeywords()); 
   System.out.printf("  Creator: %s%n", props.getCreator()); 
   System.out.printf("  Producer: %s%n", props.getProducer()); 
   System.out.printf("  Created: %s%n", props.getCreated()); 
   System.out.printf("  Modified: %s%n", props.getModified()); 
   System.out.printf("----------:"); 
 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Pdf Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.