diff --git a/blob-stream/blob-stream-tests.ts b/blob-stream/blob-stream-tests.ts
new file mode 100644
index 000000000..85878c023
--- /dev/null
+++ b/blob-stream/blob-stream-tests.ts
@@ -0,0 +1,6 @@
+/// <reference path="./blob-stream.d.ts" />
+
+var bl = BlobStream();
+
+var blob = bl.toBlob("aplication/PDF");
+var brl = bl.toBlobURL("app/JSON");
\ No newline at end of file
diff --git a/blob-stream/blob-stream.d.ts b/blob-stream/blob-stream.d.ts
new file mode 100644
index 000000000..17f142bbb
--- /dev/null
+++ b/blob-stream/blob-stream.d.ts
@@ -0,0 +1,20 @@
+// Type definitions for Pdfkit v0.7.1
+// Project: https://github.com/devongovett/blob-stream
+// Definitions by: Eric Hillah <https://github.com/erichillah>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare function BlobStream(): BlobStream.IBlobStream;
+
+declare module BlobStream {
+
+    interface IBlobStream extends NodeJS.WritableStream{
+        toBlob(type: string): Blob;
+        toBlobURL(type: string): string;
+    }
+}
+
+declare module "blob-stream" {
+    export = BlobStream;
+}