C# Crop PDF pages

When working with PDF documents, it is sometimes necessary to precisely crop the pages to fit specific needs, such as removing advertisements, background information, or simply to simplify the document content. This article describes how to use the free .Crop PDF pages through the C# realization。

free libraryFree for .NET NET (C#, , , .NET Core) programs to create, manipulate, convert and print PDF documents.

References can be added manually after downloading the product package from the link below, or installed directly via NuGet.

/Downloads/

C# Crop PDF pages

Free for .NET this library provides a very simple interface to achieve the specified area of the crop PDF page, the specific operation is as follows:

1. pass (a bill or inspection etc) LoadFromFile() method to load PDF documents;
2. Get the specified PDF page;
3. Specify a region and then pass the property crops the specified area;
4. pass (a bill or inspection etc)SaveToFile() method to save the cropped PDF document.

The sample code is as follows:

using ;
using ;

namespace CropPDFPage
{
    class Program
    {
        static void Main(string[] args)
        {
            //Load PDF document
            PdfDocument pdf = new PdfDocument();
            ("Example.pdf");

            //Get the second page
            PdfPageBase page = [1];

            //Crop PDF pages by specified area
             = new RectangleF(270, 130, 400, 480);

            //Save the cropped document
            ("crop");
            ();
        }
    }
}

Before and after cropping:

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