Coherent PDF .NET API Usage Examples

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Here are some examples of the Coherent PDF .NET API in action. For more instructions, see the Full PDF Manual.

//Merge example
using System;
using System.Collections.Generic;
using CoherentGraphics;

// Initialise cpdf
Cpdf.startup();

// We will take the input hello.pdf and repeat it three times
using (Cpdf.Pdf mergepdf = Cpdf.fromFile("hello.pdf", ""))
{
  // The list of PDFs to merge
  List pdfs = new List {mergepdf, mergepdf, mergepdf};

  // Merge them
  Cpdf.Pdf merged = Cpdf.mergeSimple(pdfs);

  // Write output
  Cpdf.toFile(merged, "merged.pdf", false, false);

  // Dispose of merged PDF
  merged.Dispose();
}

In C#, read the file hello.pdf and triplicate it, writing to merged.pdf

' Merge example
imports System
imports System.Collections.Generic
imports CoherentGraphics

' Initialise cpdf
Cpdf.startup()

' We will take the input hello.pdf and repeat it three times
Using mergepdf As Cpdf.Pdf = Cpdf.fromFile("hello.pdf", "")
  ' The list of PDFs to merge
  Dim pdfs As List(Of Cpdf.Pdf) =
    new List(Of Cpdf.Pdf)({mergepdf, mergepdf, mergepdf})

  ' Merge them
  Dim merged As Cpdf.Pdf = Cpdf.mergeSimple(pdfs)

  ' Write output
  Cpdf.toFile(merged, "merged.pdf", false, false)

  ' Dispose of merged PDF
  merged.Dispose()
End Using

The same example, in VB.NET.