This code example shows us how to replace the text 'old text' with the text 'new text' in all paragraphs of the document.
Complete code
using System;
using System.IO;
using System.Linq;
using SautinSoft.Document;
namespace Example
{
class Program
{
static void Main(string[] args)
{
// Get your free 100-day key here:
// https://sautinsoft.com/start-for-free/
FindAndReplaceInParagraphs();
}
/// <summary>
/// Find and replace a specific text in all paragraphs in PDF document.
/// </summary>
/// <remarks>
/// Details: https://sautinsoft.com/products/document/help/net/developer-guide/replace-text-paragraphs-in-pdf-document-net-csharp-vb.php
/// </remarks>
static void FindAndReplaceInParagraphs()
{
string filePath = @"..\..\..\example.pdf";
string fileResult = @"Result.pdf";
DocumentCore dc = DocumentCore.Load(filePath);
foreach (Paragraph par in dc.GetChildElements(true, ElementType.Paragraph))
foreach (ContentRange item in par.Content.Find("old text").Reverse())
{
item.Replace("new text");
}
dc.Save(fileResult);
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(filePath) { UseShellExecute = true });
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(fileResult) { UseShellExecute = true });
}
}
}
Imports System
Imports System.IO
Imports System.Linq
Imports SautinSoft.Document
Module Sample
Sub Main()
FindAndReplaceInParagraphs()
End Sub
''' Get your free 100-day key here:
''' https://sautinsoft.com/start-for-free/
''' <summary>
''' Find and replace a specific text in all paragraphs in PDF document.
''' </summary>
''' <remarks>
''' Details: https://sautinsoft.com/products/document/help/net/developer-guide/replace-text-paragraphs-in-pdf-document-net-csharp-vb.php
''' </remarks>
Private Sub FindAndReplaceInParagraphs()
Dim filePath As String = "..\..\..\example.pdf"
Dim fileResult As String = "Result.pdf"
Dim dc As DocumentCore = DocumentCore.Load(filePath)
For Each par As Paragraph In dc.GetChildElements(True, ElementType.Paragraph)
For Each item As ContentRange In par.Content.Find("old text").Reverse()
item.Replace("new text")
Next item
Next par
dc.Save(fileResult)
System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(filePath) With {.UseShellExecute = True})
System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(fileResult) With {.UseShellExecute = True})
End Sub
End Module
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