[javascript] Window.Open with PDF stream instead of PDF location

Based on the question Open PDF in new browser full window, it looks like I can use JavaScript to open a new window with a PDF file with the following code:

window.open('MyPDF.pdf', '_blank');

I'd like to do so on a return trip from the server by adding a byte array instead of the file name to use as the URL location in window.open

I'm currently returning PDF files like this:

Response.Clear();
Response.ContentType = "application/pdf";
Response.BinaryWrite(pdfByteArray);
Response.Flush();

Is there a way to open a new window with a PDF byte array in javascript.

Something like this:

var script = "window.open('" + pdfByteArray + "', '_blank');";
ScriptManager.RegisterClientScriptBlock(Parent.Page, typeof(Page), "pdf", script, true);

This question is related to javascript asp.net .net pdf window.open

The answer is


Note: I have verified this in the latest version of IE, and other browsers like Mozilla and Chrome and this works for me. Hope it works for others as well.

if (data == "" || data == undefined) {
    alert("Falied to open PDF.");
} else { //For IE using atob convert base64 encoded data to byte array
    if (window.navigator && window.navigator.msSaveOrOpenBlob) {
        var byteCharacters = atob(data);
        var byteNumbers = new Array(byteCharacters.length);
        for (var i = 0; i < byteCharacters.length; i++) {
            byteNumbers[i] = byteCharacters.charCodeAt(i);
        }
        var byteArray = new Uint8Array(byteNumbers);
        var blob = new Blob([byteArray], {
            type: 'application/pdf'
        });
        window.navigator.msSaveOrOpenBlob(blob, fileName);
    } else { // Directly use base 64 encoded data for rest browsers (not IE)
        var base64EncodedPDF = data;
        var dataURI = "data:application/pdf;base64," + base64EncodedPDF;
        window.open(dataURI, '_blank');
    }

}

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