Access or change the PDF filename

24 Oct 20251 minute to read

The Syncfusion ASP.NET MVC PDF Viewer allows you to access the filename of the loaded PDF document, and to customize the filename used when the document is downloaded. This is achieved using the DocumentLoad and DownloadEnd events.

The following steps demonstrate how to access and modify the filename in the PDF Viewer:

Step 1: Create an ASP.NET MVC PDF Viewer sample by following the getting started guide.

Step 2: Access and change the filename using the code snippets below.

In the DocumentLoad or DownloadEnd event handler, you can access the original filename from args.fileName. To change the filename for download, set the viewer.downloadFileName property.

```html
@Html.EJS().PdfViewer("pdfviewer").DocumentPath("https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf").DocumentLoad("documentLoad").DownloadEnd("documentLoad").Render()

<script>
    function documentLoad(args) {
        var viewer = document.getElementById('pdfviewer').ej2_instances[0];
        args.fileName = "pdf-succinctly.pdf";
        //Sets the name of the file to be downloaded
        viewer.downloadFileName = "pdf-succinctly.pdf";
        console.log(args);
    }
</script>

```
```html
@Html.EJS().PdfViewer("pdfviewer").DocumentPath("https://cdn.syncfusion.com/content/pdf/hive-succinctly.pdf").ServiceUrl(VirtualPathUtility.ToAbsolute("~/PdfViewer/")).DocumentLoad("documentLoad").DownloadEnd("documentLoad").Render()

<script>
    function documentLoad(args) {
        var viewer = document.getElementById('pdfviewer').ej2_instances[0];
        args.fileName = "pdf-succinctly.pdf";
        //Sets the name of the file to be downloaded
        viewer.downloadFileName = "pdf-succinctly.pdf";
        console.log(args);
    }
</script>
```

Download the sample how to access file name