How to load the base64 string in PDF Viewer

Load base64 to PDF Viewer

PDF Viewer supports loading the PDF document from the database as a base64 string using the documentPath API.

The following code example will get the PDF document as a byte array using its name from the database and convert the same into a base64 string.

public object GetDocument()
{
    string documentID = "Xyz.pdf";
    string constr = System.Configuration.ConfigurationManager.ConnectionStrings["PdfDocument"].ConnectionString;
    System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection(constr);
    // Searches for the PDF document from the database
    var query = "select Data from PdfDocuments where DocumentName = '" + documentID + "'";
    System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(query);
    cmd.Connection = con;
    con.Open();
    System.Data.SqlClient.SqlDataReader read = cmd.ExecuteReader();
    read.Read();
    // Reads the PDF document data as a byte array from the database
    byte[] byteArray = (byte[])read["Data"];
    // Converts the byte array into a base64 string
    return "data:application/pdf;base64," + Convert.ToBase64String(byteArray);
}

Refer to the sample to load the base64 string in PDF Viewer.

https://www.syncfusion.com/downloads/support/directtrac/general/ze/EJ2PdfViewer_Core-135324210

In the sample, clicking the ‘Load PDF document as Base64String’ will get PDF document from the local disk as base64 string in GetDocument() and load it in PDF Viewer using documentPath. 

I hope you enjoyed learning about how to load the base64 string in PDF Viewer.

You can refer to our ASP.NET MVC PDF Viewer feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications. You can also explore our ASP.NET MVC PDF Viewer example to understand how to create and manipulate data.

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