Question

37

Window.Open with PDF stream instead of PDF location

rated 0 times [ 43] [ 6] / answers: 1 / hits: 150057 / 10 Years ago, mon, march 31, 2014, 12:00:00

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);

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ashly

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4 Years ago

answered 10 Years ago tayaw · Accepted Answer

It looks like window.open will take a Data URI as the location parameter.

So you can open it like this from the question: Opening PDF String in new window with javascript:

window.open("data:application/pdf;base64, " + base64EncodedPDF);

Here's an runnable example in plunker, and sample pdf file that's already base64 encoded.

Then on the server, you can convert the byte array to base64 encoding like this:

string fileName = @"C:TEMPTEST.pdf";

byte[] pdfByteArray = System.IO.File.ReadAllBytes(fileName);

string base64EncodedPDF = System.Convert.ToBase64String(pdfByteArray);

NOTE: This seems difficult to implement in IE because the URL length is prohibitively small for sending an entire PDF.