Make text a link/annotation to invoke goTo other page action in PDF - pdf

Question

How do I make plain text in a PDF a link to another part of the pdf document?
Currently, I'm post processing a PDF. I've identified two pages that should link pack to each other base on if two numbers (text object) are found in the page.
Is there a way I can convert that text to a clickable local link?

Answer 1

We have checked the reported query "Make text a link/annotation to invoke goto other page action in PDF" and prepared a test sample to meet your requirement. In this sample we have used PdfDocumentLinkAnnotation to navigate the internal document by click on text. Please check the sample and it is available in the below link for your reference.
Please find the sample from the following link.
Also please find the below UG documentation link to more details about PdfDocumentLinkAnnotation.
Code in link:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using Syncfusion.Pdf;
using Syncfusion.Pdf.Graphics;
using Syncfusion.Pdf.Interactive;
namespace ConsoleApplication1
{
class Program
{
public static string DataPathOutput
{
get
{
if (!Directory.Exists(System.Environment.CurrentDirectory + #"\..\..\Output\"))
Directory.CreateDirectory(System.Environment.CurrentDirectory + #"\..\..\Output\");
return System.Environment.CurrentDirectory + #"\..\..\Output\";
}
}
static void Main(string[] args)
{
// Creates a new PDF document
PdfDocument document = new PdfDocument();
// Creates a first page
PdfPage firstPage = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);
PdfBrush brush = PdfBrushes.Black;
PdfGraphics graphics1 = firstPage.Graphics;
string inputText1 = "Sample Text-1";
graphics1.DrawString(inputText1, font, brush, 10, 40);
// Measure string size to use same size for annotation
SizeF size1 = font.MeasureString(inputText1);
RectangleF rectangle1 = new RectangleF(10, 40, size1.Width, size1.Height);
// Creates a second page
PdfPage secondPage = document.Pages.Add();
PdfGraphics graphics2 = secondPage.Graphics;
string secondPageInput = "Sample Text-2";
graphics2.DrawString(secondPageInput, font, brush, 10, 40);
// Measure string size to use same size for annotation
SizeF size2 = font.MeasureString(inputText1);
RectangleF rectangle2 = new RectangleF(10, 40, size2.Width, size2.Height);
// Add annotation for firstpage to link second page of PdfDocumet
PdfDocumentLinkAnnotation firstAnnotation = new PdfDocumentLinkAnnotation(rectangle1);
firstAnnotation.Color = new PdfColor(Color.Transparent);
firstAnnotation.Destination = new PdfDestination(secondPage);
// Use below comment for link specific part of page
//firstAnnotation.Destination.Location = new Point(10, 40);
firstPage.Annotations.Add(firstAnnotation);
// Add annotation for second page to link first page of PdfDocumet
PdfDocumentLinkAnnotation secondAnnotation = new PdfDocumentLinkAnnotation(rectangle2);
secondAnnotation.Color = new PdfColor(Color.Transparent);
secondAnnotation.Destination = new PdfDestination(firstPage);
// Use below comment for link specific part of page
//secondAnnotation.Destination.Location = new Point(10, 40);
secondPage.Annotations.Add(secondAnnotation);
// Save document on mentioned location
document.Save(System.IO.Path.Combine(DataPathOutput, "Output.pdf"));
document.Close(true);
}
}
}