Update PDF Forms in .NET SDK

Update all of the form fields from the PDF document using Aspose.PDF Cloud .NET API

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Aspose.PDF Cloud SDK for .NET

Overview

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    How to Update Form Fields from PDF Document using Cloud .NET SDK

    In order to update an AcroForm via Cloud .NET SDK , we’ll use Aspose.PDF Cloud .NET SDK This Cloud SDK allows you to easily build cloud-based PDF creator, editor & converter apps in C#, ASP.NET, or other .NET languages for various cloud platforms. Open NuGet package manager, search for Aspose.PDF Cloud and install. You may also use the following command from the Package Manager Console: PM> Install-Package Aspose.Pdf-Cloud

    Steps to update AcroForms via .NET SDK

    Aspose.PDF Cloud developers can easily load & update acroforms in PDF in just a few lines of code.

    1. Create a new Configuration object with your Application Secret and Key
    2. Create an object to connect to the Cloud API
    3. Upload your document file
    4. Perform the updating
    5. Download the result
     

    This sample code shows updating the AcroForms in PDF documents

    
    public static async Task UpdateFormFields()
    {
        const string localImageFileName = @"C:\Samples\sample.pdf";
        const string storageFileName = "sample.pdf";
        const string localFolder = @"C:\\Samples";
        const string resultFileName = "output_update_form_filed.pdf";

        // Get your AppSid and AppSecret from https://dashboard.aspose.cloud (free registration required).            
        var pdfApi = new PdfApi(AppSecret, AppSid);

        var filesOnStorage = await pdfApi.GetFilesListAsync("");
        if (filesOnStorage.Value.All(f => f.Name != storageFileName))
        {
            using var file = File.OpenRead(localImageFileName);
            var uploadResult = await pdfApi.UploadFileAsync(storageFileName, file);
            Console.WriteLine(uploadResult.Uploaded[0]);
        }
        var fieldList = new List<Field>
        {
            new Field(
                    Name: "First Name",
                    Type: FieldType.Text,
                    Values: ["James"],
                    Rect: new Rectangle(125, 735, 200, 752))
        };

        var fields = new Fields(List: fieldList);

        var response = await  pdfApi.PutUpdateFieldsAsync(storageFileName, fields);
        Console.WriteLine(response.Status);

        using Stream downloadStream = await pdfApi.DownloadFileAsync(storageFileName);
        using FileStream localStream = File.Create(Path.Combine(localFolder, resultFileName));
        await downloadStream.CopyToAsync(localStream);
    }