Reverse Method

Summary

Flips this page horizontally.

Syntax

C++/CLI

Python

public void Reverse()

public:  
   void Reverse()

def Reverse(self):

Remarks

This method changes the value of ViewPerspective based on the previous value.

Refer to Document Page Transformation for more information.

Example

using Leadtools.Document; 
using Leadtools.Document.Converter; 
using Leadtools.Document.Writer; 
 
 
public void DocumentPageRotateExample() 
{ 
   var documentUri = new Uri("https://demo.leadtools.com/images/pdf/leadtools.pdf"); 
   string documentFile = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf"); 
 
   // Load this document 
   var loadDocumentOptions = new LoadDocumentOptions(); 
   using (var document = DocumentFactory.LoadFromUri(documentUri, loadDocumentOptions)) 
   { 
      // Documents are read-only by default and we cannot modify them. Fix that 
      document.IsReadOnly = false; 
 
      DocumentPage page; 
 
      // This document has 5 pages 
 
      // Rotate the page by 90 degrees clockwise 
      page = document.Pages[0]; 
      page.Rotate(90); 
      // Flip the second page vertically 
      page = document.Pages[1]; 
      page.Flip(); 
      // Delete the third page 
      page = document.Pages[2]; 
      page.IsDeleted = true; 
      // Reverse the fourth page 
      page = document.Pages[3]; 
      page.Reverse(); 
 
      // Set the view perspective 
      page.ViewPerspective = Leadtools.RasterViewPerspective.TopLeft; 
 
      // we will save it as a new PDF, this file should contain 4 pages with the first rotated by 90 and the second flipped vertically 
      using (var documentConverter = new DocumentConverter()) 
      { 
         var jobData = new DocumentConverterJobData(); 
         // The loaded document is our input 
         jobData.Document = document; 
         // We want PDF as output 
         jobData.DocumentFormat = DocumentFormat.Pdf; 
         // Into this file 
         jobData.OutputDocumentFileName = documentFile; 
 
         var job = documentConverter.Jobs.CreateJob(jobData); 
         documentConverter.Jobs.RunJob(job); 
      } 
   } 
 
   // Show the result 
   Process.Start(documentFile); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

DocumentPage Class

DocumentPage Members

Leadtools.Document Namespace

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Help Version 22.0.2023.4.21

Leadtools.Document Assembly

Introduction

Getting Started

Namespaces

Leadtools.Document Namespace

Assemblies