Open PDF file from AWS S3

30 Nov 20231 minute to read

To load a PDF file from AWS S3, you can follow the steps below

Step 1: Create a simple console application

Project configuration window

Step 3: Install the AWSSDK.S3 NuGet package as a reference to your project from the NuGet.org.

NuGet package installation

Step 4: Include the following namespaces in the Program.cs file.

using Amazon;
    using Amazon.S3;
    using Amazon.S3.Transfer;

Step 5: Add the below code example to load a PDF from AWS S3.

// Set your AWS credentials and region
    string accessKey = "YOUR_ACCESS_KEY";
    string secretKey = "YOUR_SECRET_KEY";
    RegionEndpoint region = RegionEndpoint.YOUR_REGION; // Change to your desired region

    // Specify the bucket name and object key
    string bucketName = "YOUR_BUCKET_NAME";
    string objectKey = "YOUR_OBJECT_KEY"; 

    string localFilePath = "Output.pdf";
    // Download the PDF from S3
    //MemoryStream pdfStream = DownloadFromS3(accessKey, secretKey, region, bucketName, objectKey);
    using (var s3Client = new AmazonS3Client(accessKey, secretKey, region))
    {
        using (var transferUtility = new TransferUtility(s3Client))
        {   
            transferUtility.Download(localFilePath, bucketName, objectKey);
        }
    }

You can download a complete working sample from GitHub.