# Javascript: DocumentViewerController.loadDocument Method

> Loads a Base64-encoded document and replaces the currently displayed document.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 24.0
- **Path:** TX Text Control .NET Server > Reference > JavaScript API - Document Viewer > Javascript: DocumentViewerController.loadDocument Method
- **595 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/documentviewercontroller/loaddocument-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/documentviewercontroller/loaddocument-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/documentviewercontroller/loaddocument-method/llms-full.txt

---

### Description

Loads a Base64-encoded document and replaces the currently displayed document.

### Syntax

```javascript
<Promise.<boolean>> DocumentViewerController.loadDocument(<DocumentData> documentData, [<string> docName], [<SignatureSettings> signatureSettings], [<DocumentLoadSettings> documentLoadSettings])
```

### Parameters

| Parameter | Description |
|---|---|
| documentData | Base64-encoded data without a data-URL prefix. |
| docName | Optional. Document name, optionally including a path or extension. |
| signatureSettings | Optional. Document-specific signature settings. |
| documentLoadSettings | Optional. Provider-specific load settings. |

### Return Value

`true` after a successful load, otherwise `false` for handled failures.

### Examples

The following example demonstrates `TXDocumentViewer.loadDocument` in a practical Document Viewer workflow. Loads a document from memory into the DocumentViewer. The document must be passed as an Base64 encoded string. The format is recognized automatically.

```javascript
async function loadContract(documentBase64) {
    const signatureSettings = {
        showSignatureBar: true,
        ownerName: "Contoso Legal",
        signerName: "Alex Reviewer",
        signerInitials: "AR",
        signatureBoxes: [
            { name: "CustomerSignature", signingRequired: true, style: 0 }
        ]
    };
    const loadSettings = { loadEmbeddedComments: true };

    const loaded = await TXDocumentViewer.loadDocument(
        documentBase64,
        "contract.docx",
        signatureSettings,
        loadSettings
    );
    console.log("Contract loaded:", loaded);
}
```

---

## Nearby

- **Previous:** [Javascript: DocumentViewerController.initialize Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/documentviewercontroller/initialize-method/llms-full.txt)
- **Next:** [Javascript: DocumentViewerController.nextSearchResult Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/documentviewercontroller/nextsearchresult-method/llms-full.txt)