Create README.md

Author: RobertHajbok

README.md

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+### What is WebFormsDocumentViewer?
+WebFormsDocumentViewer is a simple custom control that lets you embed documents (PDF and Word) in your ASP.NET WebForms pages.
+
+### How do I get started?
+First, add a reference in your web.config to the WebFormsDocumentViewer assembly:
+
+```xml
+ <system.web>
+    <pages>
+      <controls>
+        <add assembly="WebFormsDocumentViewer" namespace="WebFormsDocumentViewer" tagPrefix="cc" />
+      </controls>
+    </pages>
+  </system.web>
+  <system.webServer>
+```
+
+Or on your web page:
+
+```csharp
+<%@ Register Assembly="WebFormsDocumentViewer" Namespace="WebFormsDocumentViewer" TagPrefix="cc" %>
+```
+
+### How to use it?
+You can configure the following parameters of the viewer:
+* Width: sets the width of the iframe
+* Height: sets the height of the iframe
+* FilePath: path to the file to be render on the HTML page
+* TempDirectoryPath: path for the temporary converted to PDF files (see Word section below).
+
+### How to embed PDF documents?
+For PDF documents, a simple iframe is generated, so the following line is enough to embed a document:
+
+```html
+<cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="~/sample.pdf" />
+```
+
+### How to embed Word documents?
+Word documents are converted to PDF documents, then rendered in iframe. You should have Microsoft Office installed on the server for this to work.
+You can embed a Word document as shown below:
+
+```html
+<cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="sample.docx" TempDirectoryPath="~/TempFiles" />
+```
+
+If TempDirectoryPath is not supplied, the converted documents can be found in the Temp directory of the project root.
+
+### Do you have an issue?
+Have a bug or a feature request? Please search for existing and closed issues before submitting a new one. If your problem or idea is not addressed yet, please open a new issue.