XPS文档中的评论

Question

我想在XPS文档中添加注释.是否可以使用.Net API并将其读回？我需要添加嵌入在XPS文件中的隐藏文本.

Answer 1

您可以使用类及其属性将元数据添加到XPS文档文件.XpsDocumentCoreDocumentProperties

我不确定这是否能满足您的要求,但这是如何做到的.

using System.IO;
using System.IO.Packaging;
using System.Windows.Xps.Packaging;

namespace StackOverflow
{
    class Program
    {
        static void Main(string[] args)
        {
            const string XpsFilePath = @" ... path to XPS file ... ";

            using (var document = new XpsDocument(XpsFilePath, FileAccess.ReadWrite))
            {
                PackageProperties properties = document.CoreDocumentProperties;
                properties.Title = "Some title";
                properties.Subject = "Some subject line";
                properties.Keywords = "stackoverflow xps";
                properties.Category = "Some category";
                properties.Description = "Some kind of document";
                properties.Creator = "me";
                properties.LastModifiedBy = "me again";
                properties.Revision = "Rev A";
                properties.Version = "v1";
            }

            // XpsDocument is from System.Windows.Xps.Packaging, in ReachFramework assembly
            // PackageProperties is from System.IO.Packaging, in WindowsBase assembly
        }
    }
}

您可以通过创建XpsDocument具有读访问权限的新功能,通过代码访问此信息.

using (var document = new XpsDocument(XpsFilePath, FileAccess.Read))
{
    PackageProperties properties = document.CoreDocumentProperties;
    System.Console.WriteLine(properties.Title);
    // etc...
}

您可以通过右键单击文件,选择" 属性",然后显示" 详细信息"选项卡,在Windows中查看XPS文档的元数据:

元数据不是严格隐藏的,因为您可以使用上述技术在Windows中看到它或通过代码访问它.但是,它不会显示在XPS文档的实际页面上,因此在查看或打印时通常不会显示.