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要在文档中旋转页面,我们可以使用 PageRotations。
PageRotations
包含页面编号和旋转角度,键表示页面编号,键的值表示旋转的度数。
// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void RotatePages1()
{
// The path to the documents directory
var dataDir = RunExamples.GetDataDir_AsposePdf();
using (var editor = new Aspose.Pdf.Facades.PdfPageEditor())
{
// Bind PDF document
editor.BindPdf(dataDir + "sample.pdf");
// Specify the page rotation dictionary
editor.PageRotations = new System.Collections.Generic.Dictionary<int, int>
{
{ 1, 90 },
{ 2, 180 },
{ 3, 270 }
};
// Save PDF document
editor.Save(dataDir + "sample-rotate-a.pdf");
}
}
我们还可以使用 Rotation 属性。旋转必须是 0、90、180 或 270。
// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void RotatePages2()
{
// The path to the documents directory
var dataDir = RunExamples.GetDataDir_AsposePdf();
using (var editor = new Aspose.Pdf.Facades.PdfPageEditor())
{
// Bind PDF document
editor.BindPdf(dataDir + "sample.pdf");
// Specify the pages to rotate and the rotation angle
editor.ProcessPages = new int[] { 1, 3 };
editor.Rotation = 90;
// Save PDF document
editor.Save(dataDir + "sample-rotate-a.pdf");
}
}
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