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docs/usage/packers.md

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+# Packers
+
+I used the express exporter in my [website](http://www.dolan.bio). It's very useful, and is the preferred way if you want to make a downloadable file for a visitor. it is much better than generating a physical file on the server, and then passing a download link to that file.
+
+## File System Packer
+
+```js
+const docx = require("docx");
+
+const doc = new docx.Document();
+const exporter = new docx.LocalPacker(doc);
+exporter.pack("My Document");
+// Word Document is in file system
+```
+
+## Buffer Packer
+
+```js
+const docx = require("docx");
+
+const doc = new docx.Document();
+const exporter = new docx.BufferPacker(doc);
+const buffer = exporter.pack();
+```
+
+## Stream Packer
+
+Creates a `node` `Readable` stream
+
+```js
+const docx = require("docx");
+
+const doc = new docx.Document();
+const exporter = new docx.StreamPacker(doc);
+const buffer = exporter.pack();
+```
+
+## Express Packer
+
+Simply use the exporter, and pass in the necessary parameters:
+
+```js
+const docx = require("docx");
+
+const doc = new docx.Document();
+const exporter = new docx.ExpressPacker(doc, res);
+exporter.pack("My Document");
+```
+
+where `res` is the response object obtained through the Express router. It is that simple. The file will begin downloading in the browser.
+
+## PDF Exporting
+
+You can export your word document as a PDF file like so:
+
+```js
+const exporter = new docx.LocalPacker(doc);
+exporter.packPdf("My Document");
+
+// Express
+const exporter = new docx.ExpressPacker(doc, res);
+exporter.packPdf("My Document");
+```
+
+## Browser based docx exporting
+
+It is on the bucket list. It has been requested by a few, and work is already on it