复制内部和外部字段

CopyInnerField 方法允许您在同一文件中、在指定页面的相同坐标处复制字段。此方法需要您要复制的字段名称、新字段名称以及需要复制字段的页面编号。FormEditor 类提供了此方法。以下代码片段向您展示如何在同一文件的相同位置复制字段。

 // For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void CopyInnerField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf();

    // Create an instance of FormEditor object
    using (var formEditor = new Aspose.Pdf.Facades.FormEditor())
    {
        // Open PDF document
        using (var document = new Aspose.Pdf.Document(dataDir + "Sample-Form-01.pdf"))
        {
            // Add page
            document.Pages.Add();

            // Bind PDF document
            formEditor.BindPdf(document);

            // Copy the field "Last Name" from the first page to "Last Name 2" on the second page
            formEditor.CopyInnerField("Last Name", "Last Name 2", 2);

            // Save PDF document
            formEditor.Save(dataDir + "Sample-Form-01-mod.pdf");
        }
    }
}

在现有 PDF 文件中复制外部字段

CopyOuterField 方法允许您从外部 PDF 文件复制表单字段，然后将其添加到输入 PDF 文件的相同位置和指定页面编号。此方法需要从中复制字段的 PDF 文件、字段名称以及需要复制字段的页面编号。此方法由 FormEditor 类提供。以下代码片段向您展示如何从外部 PDF 文件复制字段。

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void CopyOuterField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf();

    // Create an instance of FormEditor 
    using (var formEditor = new Aspose.Pdf.Facades.FormEditor())
    {
        // Create empty document
        using (var document = new Aspose.Pdf.Document())
        {
            // Add page
            document.Pages.Add();

            // Bind PDF document
            formEditor.BindPdf(document);

            // Copy the outer field "First Name" from the original document to the new document
            formEditor.CopyOuterField(dataDir + "Sample-Form-01.pdf", "First Name", 1);

            // Copy the outer field "Last Name" from the original document to the new document
            formEditor.CopyOuterField(dataDir + "Sample-Form-01.pdf", "Last Name", 1);

            // Save PDF document
            formEditor.Save(dataDir + "Sample-Form-02-mod.pdf");
        }
    }
}