修改 PDF 中的注释

修改注释

ModifyAnnotations 方法允许您更改注释的基本属性，即主题、修改日期、作者、注释颜色和打开标志。您还可以通过使用 ModifyAnnotations 方法直接设置作者。此类还提供了两个重载方法来删除注释。第一个方法称为 DeleteAnnotations，从 PDF 文件中删除所有注释。

例如，在以下代码中，考虑使用 ModifyAnnotationsAuthor 更改我们注释中的作者。

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ModifyAnnotationsAuthor()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Annotations();
    // Create PdfAnnotationEditor
    using (var annotationEditor = new Aspose.Pdf.Facades.PdfAnnotationEditor())
    {
        // Bind PDF document
        annotationEditor.BindPdf(dataDir + "AnnotationsInput.pdf");
        // Modify annotations author
        annotationEditor.ModifyAnnotationsAuthor(1, 2, "Aspose User", "Aspose.PDF user");
        // Save PDF document
        annotationEditor.Save(dataDir + "ModifyAnnotationsAuthor_out.pdf");
    }
}

第二个方法允许您修改注释。

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ModifyAnnotations()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Annotations();
    // Open PDF document
    using (var document = new Aspose.Pdf.Document(dataDir + "AnnotationsInput.pdf"))
    {
        // Create PdfAnnotationEditor
        using (var annotationEditor = new Aspose.Pdf.Facades.PdfAnnotationEditor())
        {
            // Bind PDF document
            annotationEditor.BindPdf(document);
            // Create a new object of type Annotation
            TextAnnotation newTextAnnotation = new TextAnnotation(document.Pages[1], new Aspose.Pdf.Rectangle(200, 400, 400, 600));
            newTextAnnotation.Title = "Updated title";
            newTextAnnotation.Subject = "Updated subject";
            newTextAnnotation.Contents = "Updated sample contents for the annotation";
            // Modify annotations in the PDF file
            annotationEditor.ModifyAnnotations(1, 1, newTextAnnotation);
            // Save PDF document
            annotationEditor.Save(dataDir + "ModifyAnnotations_out.pdf");
        }
    }
}