Local AI for Word Documents in .NET - Spire.Office.EdgeAI.Doc

Free Plugin for Spire.Doc for .NET

Local AI Plugin for
Word Document Processing in .NET

Bring AI-powered document processing to your local environment with Spire.Office.EdgeAI.Doc Use a ready-made AI model to translate, summarize, review, and extract information from Word documents — with no cloud-based AI processing required.

Explore the Plugin See how it works

100% local & private Run AI models locally on your own machine, with no cloud-based processing.

Ready-to-Use Model Get started with an existing AI model, with no need to train one from scratch.

Lightweight & CPU-Friendly Runs on a standard CPU, with no need for a dedicated GPU or high-end hardware.

◈ Free optional plugin download · Ready-to-use local AI model · Integrates with Spire.Doc for .NET

Real Documents. Real AI Results.

Explore practical examples of how Spire.Office.EdgeAI.Doc processes Word documents,
from the original file to the result.

Translate a Word document into any language.

Use local AI to translate Word documents while preserving
their original meaning and structure.

API call

var document = new Document();
document.LoadFromFile("input.docx");
await document.TranslateAsync("en-US");
document.SaveToFile("output.docx", FileFormat.Docx2016);

Input: English .docx

Output: multiple languages

More Than Reading. Smarter
Word Document Processing with AI.

Spire.Office.EdgeAI.Doc brings local AI into Word document workflows, from translation and formatting to redaction, field
extraction, and compliance review. It goes beyond understanding content to help applications process documents
while preserving their structure and making results easier to review.

Consistent Word Formatting

Use AI to normalize typography, paragraph styles, and spacing for a clean, consistent document layout.

Local AI for .NET

Integrate local AI capabilities into .NET applications to process Word documents without relying on external AI service APIs.

Context-Aware Processing

Use local AI to understand document content and handle tasks such as translation, field extraction, and contract review based on context.

Structured Data Extraction

Turn information in Word documents into structured fields, from contract parties and amounts to equipment lists.

How Spire.Office.EdgeAI.Doc
works in Spire.Doc for .NET

Connect your .NET applications to a built-in local AI model and bring AI-powered
document processing to your existing Spire workflows—no cloud services or GPU required.

Your environment

Your .NET app

Spire.Doc loads and manages the Word document, ready for AI-powered processing.

Local AI plugin

Add the plugin to your .NET project to enable AI-powered Word processing.

Local AI model

Process Word documents locally on a standard CPU—no cloud services or dedicated GPU required.

100% local private AI · Ready-to-Use AI model · Runs on a standard CPU
· Data Stays on Your Device

AI Features
for Word Documents

All features run locally, processing
Word documents without sending data to the cloud.

Document
Intelligence

Understand Word document content and identify the information that matters most.

Structured Field
Extraction

Extract specific details such as contract parties, dates, amounts, and equipment lists into structured data.

Contract Analysis &
Compliance

Review contract terms, detect potential risks, and check content against predefined compliance rules.

Content Generation &
Conversion

Create business documents from instructions, refine existing content, and convert Word files into other formats.

And more: Structured field extraction, contract analysis, and content generation for Word documents. New features are added continuously.

100% local private AI for documents
that stay inside your network.

Contracts, financial records and internal reports are among the most sensitive files a business holds —
so everything is processed on your own machine, with nothing sent outside.

100% Local, No Upload

The model runs on your own machine or server.
Document content is never sent to an outside AI service.

Ready-Made Model, Runs on CPU

The plugin ships with a ready-to-use model and runs
well on a standard CPU — no high-end hardware needed.

Built for Strict Environments

Fits enterprise document work with tight information security
rules, where files cannot leave the internal environment.

Cloud AI service

Local AI plugin

Where the file
is processed

On a provider's
servers

On your own
machine or server

What leaves
your network

Your document
content

Nothing —
no upload at all

Who can see
the content

Depends on the
provider's terms

Only you —
100% local

What you need
to run it

Cloud subscription
& GPU
infrastructure

A standard CPU is
enough —
no high-end
hardware needed

Add Spire.Office.EdgeAI.Doc
to your .NET app in three steps

If you have already loaded a document with
Spire.Doc for .NET, you already know most of it.

Add the plugin

Download the local AI plugin and reference it for your project next to Spire.Doc for .NET.

Start the local engine

Create the engine once. It loads the model on your own machine or server.

Call a feature on your document

Pass the Word document to the engine, then save the processed file as usual.

C# example: translate a Word document

using Spire.Doc;
using Spire.Office.EdgeAI;
using Spire.Office.EdgeAI.Doc;
            
var document = new Document();
document.LoadFromFile("input.docx");
await document.TranslateAsync(TranslateLanguage.English);
document.SaveToFile("output.docx", FileFormat.Docx2016);