# OFD Viewer

Free online OFD viewer for Open Fixed-layout Documents. Open .ofd files directly in your browser without uploading them.

> Canonical page: https://elysiatools.com/en/viewers/ofd

- **Category:** PDF Documents

- **Supported formats:** .ofd

## Overview

This OFD viewer renders Open Fixed-layout Document files locally in your browser. OFD (GB/T 33190) is China's national standard for fixed-layout documents, widely used for electronic invoices, contracts, and official government documents. Pick a sample or choose your own .ofd file to read its pages without any dedicated software.

## When to use

- You received an .ofd invoice, receipt, or government document and need to read it.
- You are on a device without an OFD reader installed.
- You want to preview an OFD file privately before opening it elsewhere.

## How it works

- Select a built-in sample or choose your own .ofd file.
- The viewer unpacks the OFD package and renders each page in the browser with no upload.
- Read the content, then switch to another sample or load a different file any time.

## Use cases

- Reading Chinese e-invoices (电子发票) and e-contracts (电子合同).
- Previewing government e-document (电子公文) attachments.
- Inspecting OFD page layout before converting to PDF.

## Samples

- **Simple OFD Document**: A minimal OFD file for basic fixed-layout parsing and preview checks

## Frequently asked questions

### Is this OFD viewer free?

Yes. It runs in your browser for free and needs no registration or installation.

### Are my .ofd files uploaded?

No. Files opened from your device stay on your device. Only public sample files come from the server.

### What is an OFD file?

OFD (Open Fixed-layout Document) is China's national standard (GB/T 33190) for fixed-layout documents. Like PDF, it preserves page layout exactly. It is widely used for electronic invoices, contracts, and official documents in China.

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