.NET에서 PDF 페이지를 회전하고 재배하는 방법

using Aspose.Pdf.Plugins;

string input = @"C:\Docs\mixed.pdf";
string output = @"C:\Docs\rotated.pdf";

var optimizer = new Optimizer();
var rotateOptions = new RotateOptions
{
    Rotation = Rotation.on90, // Rotate 90 degrees clockwise
    Pages = new[] { 2, 4, 6 } // Rotate only even-numbered pages
};
rotateOptions.AddInput(new FileDataSource(input));
rotateOptions.AddOutput(new FileDataSource(output));

optimizer.Process(rotateOptions);

var cropOptions = new CropOptions
{
    CropBox = new Rectangle(50, 50, 500, 700), // x, y, width, height
    Pages = new[] { 1, 2 } // Crop only specific pages
};
cropOptions.AddInput(new FileDataSource(input));
cropOptions.AddOutput(new FileDataSource(@"C:\Docs\cropped.pdf"));

optimizer.Process(cropOptions);

string[] pdfFiles = Directory.GetFiles(@"C:\Docs\ToProcess", "*.pdf");
foreach (var file in pdfFiles)
{
    // 1. Rotate selected pages
    var rotate = new RotateOptions { Rotation = Rotation.on90, Pages = new[] { 1 } };
    rotate.AddInput(new FileDataSource(file));
    rotate.AddOutput(new FileDataSource(file.Replace(".pdf", "_rotated.pdf")));
    optimizer.Process(rotate);

    // 2. Crop first page in rotated output
    var crop = new CropOptions { CropBox = new Rectangle(30, 30, 400, 600), Pages = new[] { 1 } };
    crop.AddInput(new FileDataSource(file.Replace(".pdf", "_rotated.pdf")));
    crop.AddOutput(new FileDataSource(file.Replace(".pdf", "_final.pdf")));
    optimizer.Process(crop);
}