TargetPosition Property

Summary

Position in target page to scroll to for this internal link.

Syntax

C++/CLI

Java

Python

public PDFPoint TargetPosition { get; set; }

public PDFPoint getTargetPosition(); 
public void setTargetPosition( 
   PDFPoint pDFPoint 
);

public: 
property PDFPoint TargetPosition { 
   PDFPoint get(); 
   void set (    PDFPoint ); 
}

TargetPosition # get and set (PDFInternalLink)

Property Value

A PDFPoint that represents the position, in PDF units (1/72 of an inch and bottom-left), of the target page to scroll to. The default value is an empty PDFPoint.

Remarks

The position is in PDF units (1/72 of an inch and bottom-left). So to go to the top of the page, you must go to "0, PageHeight". You can use the PDFDocumentPage.ConvertPoint helper method to convert from pixel or inches to PDF units and back.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Controls; 
using Leadtools.Pdf; 
using Leadtools.Svg; 
using Leadtools.WinForms; 
 
 
public void PDFDocumentParseDocumentStructureExample() 
{ 
   string pdfFileName1 = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf"); 
   string pdfFileName2 = Path.Combine(LEAD_VARS.ImagesDir, @"Bookmarks.pdf"); 
 
   // Create a version of the source file with a few bookmarks 
   PDFFile file = new PDFFile(pdfFileName1); 
   // Load the pages 
   file.Load(); 
   List<PDFBookmark> bookmarks = new List<PDFBookmark>(); 
 
   // We will bookmarks for each page, cascading levels: 
   // Goto page 1 
   //    Goto page 2 
   //       Goto page 3 
   //          Goto page 4 
   int level = 0; 
   for (int i = 0; i < file.Pages.Count; i++) 
   { 
      PDFFilePage page = file.Pages[i]; 
 
      PDFBookmark bookmark = new PDFBookmark(); 
      bookmark.Title = "Goto page " + page.PageNumber.ToString(); 
      bookmark.BookmarkStyle = PDFBookmarkStyle.Plain; 
      bookmark.Level = level; 
      bookmark.TargetPageNumber = page.PageNumber; 
      bookmark.TargetPageFitType = PDFPageFitType.Default; 
      bookmark.TargetPosition = new PDFPoint(0, page.Height); 
      bookmark.TargetZoomPercent = 0; 
      bookmarks.Add(bookmark); 
 
      level++; 
      if (level > 8) 
      { 
         // Reset levels 
         level = 0; 
      } 
   } 
 
   file.WriteBookmarks(bookmarks, pdfFileName2); 
 
   // Create a document for the output file 
   using (PDFDocument document = new PDFDocument(pdfFileName2)) 
   { 
      // Now read the bookmarks and internal links in the document 
      document.ParseDocumentStructure(PDFParseDocumentStructureOptions.InternalLinks | PDFParseDocumentStructureOptions.Bookmarks); 
 
      Console.WriteLine("{0} bookmarks found:", document.Bookmarks.Count); 
      foreach (PDFBookmark bookmark in document.Bookmarks) 
      { 
         Console.WriteLine(" Title: {0}, Level: {1}, Target page: {2}", bookmark.Title, bookmark.Level, bookmark.TargetPageNumber); 
      } 
 
      Console.WriteLine("{0} Internal links found:", document.InternalLinks.Count); 
      foreach (PDFInternalLink internalLink in document.InternalLinks) 
      { 
         Console.WriteLine(" Source bounds: {0}, Target page: {1}", internalLink.SourceBounds, internalLink.TargetPageNumber); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

PDFInternalLink Structure

PDFInternalLink Members

PDF Coordinate System

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Help Version 22.0.2023.7.10

Leadtools.Pdf Assembly

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