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如何使用 Cloud .NET SDK 替换 PDF 文档中的文本注释
为了替换 PDF 文档中的文本注释，我们将使用 Aspose.PDF Cloud .NET SDK 此 Cloud SDK 使您可以轻松在 C#、ASP.NET 或其他 .NET 语言中构建基于云的 PDF 创建、编辑和转换应用程序，适用于各种云平台。打开 NuGet 包管理器，搜索 Aspose.PDF Cloud 并安装。您也可以在包管理器控制台中使用以下命令。
包管理器控制台命令
PM> Install-Package Aspose.Pdf-Cloud
使用 .NET SDK 替换注释的步骤
Aspose.PDF Cloud 开发人员可以轻松地在 PDF 文档中加载和替换注释，仅需几行代码。
- 将文档上传到云。
- 使用 GetTextAnnotationAsync() 获取注释。
- 修改注释内容和图标。
- 将更改保存回云端
- 下载更新的文档。
此示例代码演示如何通过 C# 替换 PDF 文档中的文本注释
using Aspose.Pdf.Cloud.Sdk.Model;
using System.Runtime.Intrinsics.X86;
namespace Annotations
{
public class ReplaceAnnotation
{
public static async Task<TextAnnotation> GetAnnotationAsync(AnnotationsHelper helper, string documentName, string annotationId, string remoteFolder)
{
// Get annotation by Id in the PDF document.
TextAnnotation annotationResult = null;
TextAnnotationResponse response = await helper.pdfApi.GetTextAnnotationAsync(documentName, annotationId, folder: remoteFolder);
if (response == null)
Console.WriteLine("GetAnnotationAsync(): Unexpected error!");
else if (response.Code < 200 || response.Code > 299)
Console.WriteLine("GetAnnotationAsync(): Failed to request text annotation from the document.");
else
{
Console.WriteLine("GetAnnotationAsync(): annotation '{0}' with '{1}' contents successfully found in the document '{2}.", response.Annotation.Id, response.Annotation.Contents, documentName);
annotationResult = response.Annotation;
}
return annotationResult;
}
public static async Task ModifyAsync(AnnotationsHelper helper, string documentName, string outputName, string annotationId, string remoteFolder)
{
// Change annotation on the page in the PDF document.
await helper.UploadFile(documentName);
TextAnnotation annotation = await ReplaceAnnotation.GetAnnotationAsync(helper, documentName, annotationId, remoteFolder);
annotation.Contents = helper.config.REPLACED_CONTENT;
annotation.Icon = TextIcon.Star;
TextAnnotationResponse response = await helper.pdfApi.PutTextAnnotationAsync(documentName, annotationId, annotation, folder: remoteFolder);
if (response == null)
Console.WriteLine("ModifyAnnotation(): Unexpected error!");
else if (response.Code < 200 || response.Code > 299)
Console.WriteLine("ModifyAnnotation(): Failed to request text annotation from the document.");
else
{
Console.WriteLine("ModifyAnnotation(): annotation '{0}' successfully modified in the document '{1}.", annotationId, documentName);
await helper.DownloadFile(documentName, outputName, "replaced_annotatiom_");
}
}
}
}