Added support for PDF.js

Author: RobertHajbok

README.md

@@ -34,6 +34,7 @@ You can configure the following parameters of the viewer:
 * 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, PowerPoint and Excel sections below).
+* PdfRenderer: is used by documents converted to PDFs (see below) and you can choose between [PDF.js](https://mozilla.github.io/pdf.js/) and [Adobe Reader](https://acrobat.adobe.com/uk/en/). Adobe Reader is used by default now, but this requires Adobe to be installed client-side. PDF.js is relying only on JavaScript, but the library is still developing. For further information check their websites.
 
 ### How to embed PDF documents?
 For PDF documents, a simple iframe is generated, so the following line is enough to embed a document:
@@ -42,15 +43,18 @@ For PDF documents, a simple iframe is generated, so the following line is enough
 <cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="~/sample.pdf" />
 ```
 
+You can additionally set the PdfRenderer parameter if you want to use PDF.js.
+
 ### 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" />
+<cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="sample.docx" TempDirectoryPath="~/TempFiles" PdfRenderer="PdfJs" />
 ```
 
 If TempDirectoryPath is not supplied, the converted documents can be found in the Temp directory of the project root.
+If PdfRenderer is not supplied, Adobe Reader is used by default.
 
 
 ### How to embed PowerPoint documents?
@@ -62,6 +66,7 @@ You can embed a PowerPoint document as shown below:
 ```
 
 If TempDirectoryPath is not supplied, the converted documents can be found in the Temp directory of the project root.
+You can additionally set the PdfRenderer parameter if you want to use PDF.js.
 
 ### How to embed Excel documents?
 Excel documents are converted to HTML files, then rendered in iframe. You should have Microsoft Office installed on the server for this to work.
@@ -72,6 +77,7 @@ You can embed an Excel document as shown below:
 ```
 
 If TempDirectoryPath is not supplied, the converted documents can be found in the Temp directory of the project root.
+You can additionally set the PdfRenderer parameter if you want to use PDF.js.
 
 ### 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.

WebFormsDocumentViewer.UI/Default.aspx

@@ -25,8 +25,10 @@
                     <div class="card text-center">
                         <div class="card-block">
                             <h4 class="card-title">PDF Viewer</h4>
-                            <p class="card-text">This renders a PDF document in an iframe.</p>
-                            <cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="~/Samples/sample.pdf" />
+                            <p class="card-text">This renders a PDF document in an iframe and uses 
+                                <a href="https://mozilla.github.io/pdf.js/" target="_blank">PDF.js</a> as the PDF renderer 
+                                instead of <a href="https://acrobat.adobe.com/uk/en/"> target="_blank"Adobe Reader</a>.</p>
+                            <cc:DocumentViewer runat="server" Width="500" Height="500" FilePath="~/Samples/sample.pdf" PdfRenderer="PdfJs" />
                         </div>
                     </div>
                 </div>