支持双层PDF:IronOCR for .NET 2022.11 支持 -127+国家语言

The C# OCR Library 
# OCR for C# to scan and read images & PDFs
# .NET OCR library with 127+ global language packs
# Output as text, structured data, or searchable PDFs
# Supports .NET 6, 5, Core, Standard, Framework
Images to Text with OCR
See All 24 Code Examples 
 
using IronOcr;
var ocr = new IronTesseract();
using (var input = new OcrInput())
{
    input.AddImage("attachment.png");
    input.AddPdf("report.pdf");
    OcrResult result = ocr.Read(input);
    string text = result.Text;
}
Install-Package IronOcr
Explore the code, install IronOCR with NuGet

Iron Ocr
Cross Platform Support
Designed for C#, F#, & VB.NET running on .NET 6, 5, Core, Standard, or Framework

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The C# OCR Library
Tesseract 5 OCR in the language you need. We support 127+.

A C# Library that prioritizes accuracy, ease of use, and speed.
Version: 2022.11 available now.

Compatibility
.NET Languages:
C#
VB.NET
F#
Platforms:
.NET 6 & 5
.NET Core 3x & 2x
.NET Standard 2
.NET Framework 4x
App Types:
Console, Web, & Desktop
OS:
Microsoft Windows
macOS
Linux (Debian, CentOS, Ubuntu)
Docker (Windows, Linux, Azure)
Azure (VPS, Webapps, Websites, Functions)
AWS (EC2, Lambda)
IDEs:
Microsoft Visual Studio
Jetbrains ReSharper & Rider
OCR Engine
Underlying OCR Engine:
Tesseract 5 (Custom .NET Engine)
International Languages:
127 Languages
High, Medium, and Fast Quality
Custom Languages
Text and Barcode Reading:
Text and Numbers
Multiple Languages at once
Barcodes (Over 20 Formats)
QR Codes
Specialist Documents:
Receipts
Checks (Cheques)
Invoices
Concurrency:
Single and Multithreading
Async Support
OCR Input
Read from Many Formats:
Images (jpg, png, gif, tiff, bmp)
Multi Page and Frame TIFF and GIF
System.Drawing Objects
Streams
PDFs
Low Quality Input Correction:
Sharpen
EnhanceResolution
Denoise
DeepCleanBackgroundNoise
Dilate and Erode
Fix Image Orientation:
Crop Rectangles
Rotate
Deskew
Scale
Fix Image Colors:
Binarize
Grayscale
Invert Colors
Replace Colors
Advanced Computer Vision:
Use Computer Vision to find text based on our advanced trained models
OCR Result
Simple Data Output:
.NET Text Strings
Barcode and QR Data
Images
Structured Data Output:
Pages
Blocks
Paragraphs
Lines
Words
Characters
Export Documents:
Searchable PDFs
hOCR Export
HTML Export
Image of any Page or Text Element
Barcode or QR Code as Image
Status and Analytics:
OCR Progress Tracking
Result Confidence