Online OFD Reader

Quickly open and view OFD files with high-quality preview. Compatible with PC, Android, and iOS devices.

Click or drag OFD file here to open

Quickly view OFD official documents and electronic invoices with high-fidelity layout and stamp rendering

Supports .ofd format. Parsed locally for 100% privacy without uploading to any server
OFD
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How to Open and View OFD Electronic Documents?

OFD (Open Fixed-layout Document) is a national standard for fixed-layout documents formulated by the standards group led by the Ministry of Industry and Information Technology. It is an independent Chinese format widely used in official documents, e-invoices, and e-licenses. Traditionally, viewing OFD files requires downloading specialized reader software. However, this online OFD reader allows you to instantly preview .ofd files directly in your browser without any plugins, rendering layouts, fonts, stamps, and signatures in high definition.

The steps to use this tool are very simple:

  1. Import Document: Visit this page, drag your .ofd file to the dashed area in the center, or click that area to select a file from your device.
  2. Automatic Parsing: The rendering engine automatically reads the XML metadata and page resources within the OFD zip package locally in your browser sandbox, rendering it with high fidelity.
  3. Browse & Interact: Once loaded, you can zoom, scroll, and pan to read every page, signature, and stamp with maximum clarity.

What is the OFD File Format? How does it differ from PDF?

OFD is China's national standard for fixed-layout documents. Similar to PDF, it ensures "What You See Is What You Get" (WYSIWYG) across different devices, operating systems, and printing setups, avoiding layout corruption due to missing fonts.

Compared to traditional PDF, OFD has the following characteristics:

  • Chinese Proprietary Format: Formulated under the leadership of MIIT, it has complete independent intellectual property rights and is the legal standard format for Chinese official electronic documents and archives.
  • High Security & Cryptography Support: OFD natively integrates Chinese cryptography algorithms (e.g., SM2/SM3/SM9), supporting multi-level electronic seals and digital signatures, making it highly secure and tamper-proof. Perfect for high-security scenarios like government affairs, housing funds, and taxation.
  • Clear Structure & Small Size: OFD uses an open, XML-like structure. Texts, images, and seals are clearly layered, making it easier for machines to read, index, and archive, and the resulting file size is typically smaller than an equivalent PDF.

Typical Use Cases of Online OFD Reader

Here are some core use cases of this tool to help you view OFD files efficiently under different environments:

  1. Instant E-Invoice Verification: Finance personnel or consumers can drag and drop OFD format value-added tax e-invoices into the page to instantly view full details and red official stamps without installing heavy readers.
  2. Official Documents & E-Licenses: When receiving government-issued documents or certificates in OFD format, open this page to read them anytime with formatting perfectly preserved.
  3. Cross-platform Mobile Office: When receiving OFD files in WeChat, DingTalk, or email, open this web tool on your phone (Android/iOS) or tablet for crisp reading without installing third-party apps.
  4. Privacy Protection: E-invoices and contracts contain highly sensitive business data. All parsing operations in this tool run locally in your browser sandbox; no document data is uploaded, protecting your privacy and business secrets.

it365 Online OFD Reader Features & Characteristics

100% Free OFD Reader

Permanently free online OFD reading service without registration. Supports PC, tablet, and mobile across Windows, Mac, Android, and iOS.

High-Fidelity Layout & Stamp Rendering

High-precision rendering of document layouts. Red stamps, signatures, and seals are rendered cleanly with vectors, ensuring sharp details without pixelation.

Wide Compatibility with OFD Specifications

Compatible with standard e-invoices, electronic official documents, and professional e-licenses across multiple industries.

Local Parsing & Absolute Privacy

All document data is processed locally in your browser sandbox. No file is uploaded to external servers, protecting your financial privacy and document confidentiality.

Smooth High-Definition Scaling

Powered by modern Canvas-based scaling, supporting seamless zooming and panning. Text and strokes remain sharp at any magnification level.

Lightning-Fast Load of Long Documents

Optimized with multithreaded parsing and virtual viewport culling. Easily opens large OFD documents with tens or hundreds of pages without lag.

Fullscreen & View Controls

Supports one-click fullscreen for distraction-free reading, canvas rotation, and fit-to-width/height controls.

Outline & Table of Contents Extraction

Extracts embedded outlines to enable quick navigation through sections, providing a smooth reading experience similar to professional PDF readers.

One-Click Switch & Reopen

Easily load another document directly from the viewer interface to compare multiple invoices or files, eliminating the need to refresh.