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 7, 6, 5, Core, Standard, Framework
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Version 2023.8 released See what’s new
Images to Text with OCRSee 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
Cross Platform Support
Designed for C#, F#, & VB.NET running on .NET 7, 6, 5, Core, Standard, or Framewor
A C# OCR Library that prioritizes accuracy, ease of use, and speed.
IronOCR is the leading C# OCR library for reading text from images and PDFs. Its user friendly API allows developers to have OCR up and running in their .NET projects in minutes.
Tesseract 5 OCR in the language you need. We support 125+.
IronOCR Release Version 2023.8
Features & Upgrades
See what’s new
Compatibility
.NET Languages:
- C#, VB.NET, F#
Platforms:
- .NET 7, 6 & 5
- .NET Core 2x & 3x
- .NET Standard 2
- .NET Framework 4.6.2+
App types:
- Console, Web, & Desktop
Operating Systems:
- Microsoft Windows
- macOS
- Linux
- Docker
- Azure
- AWS
IDEs
- Microsoft Visual Studio
- JetBrains ReSharper & Rider
Certification
- Microsoft Authenticode
OCR Engine
Underlying OCR Engine
- Tesseract 5 (Custom for .NET)
International Languages
- 125 Languages
- High and Fast Quality
- Custom Languages
Text and Barcode Reading
- Text and Numbers
- Multiple Languages at Once
- Barcodes
Specialist Documents
- Receipts
- Checks (Cheques)
- Invoices
Concurrency
- Single and Multithreading
- Async Support
- Suspend current thread
- Cancel OCR Reading
Computer Vision:
- Find text with trained models
OCR Input
Read from Many Formats:
- Images (jpg, png, gif, tiff, bmp)
- Multi-Page/Frame (tiff, gif)
- System.Drawing Objects
- Streams
- PDFs (optimized target DPI)
Filters:
- Filter Wizard (Find best filter combination)
- Image Correction (Sharpen, Enhance Resolution, Denoise, Dilate, Erode)
- Fix Image Orientation (Rotate, Deskew, Scale)
- Fix Image Colors (Binarize, Grayscale, Invert, ReplaceColor, SelectTextColor)
Apply a Crop Region:
- CropRectangle
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
- Page or Text as image
- Barcode or QR as Image
Highlight Text and Save:
- Characters, words, lines, and paragraphs
Status and Analytics:
- OCR Progress Tracking
- Result Confidence
IronOCR Roadmap
We developed IronOCR to fill a market need, and it’s excelled as one of our leading products. Today we are continually shipping new feature requests, driven by community demand.
We actively work with Google’s latest Tesseract technology to drive stability and high accuracy. This ensures our customers are benefiting from the cutting edge OCR reading engine.
Our monthly releases see IronOCR continually prove its worth, and drive our mission to help end users move the .NET language forward.
We know IronOCR is one of the top choices developers make¹. To cement IronOCR as the leading product of its kind we are applying the latest technology to improve image filters, computer vision and machine learning.
Our next epic will be to launch IronOCR for multiple programming languages.
¹Based on a customer survey conducted in June 2022.
August 2023
IronOCR v2023.8.34
Aug 1 2023
Version 2023.8.34
Features & Upgrades
NuGet Gallery | IronOcr 2023.8.34文章来源：https://www.toymoban.com/news/detail-625690.html
Release Notes:
- Searchable PDFs now retain bookmarks, annotations, page orientation, etc. (use OcrPdfInput)
- Searchable PDFs now require less disk space
- Added OcrPdfInput class for streamlined OCR of PDF documents
- Added OcrImageInput class for streamlined OCR of images
- Deprecated OcrInput class, although it will still be available for the foreseeable future
- Fixes stamping of crop rectangles not displaying properly
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