Optical Character Recognition for .NET
Use this OCR component to extract text from images, such as scanned paper documents or other image-based files.
- powered by the Tesseract OCR engine and the Leptonica image processing library
- compatible with .NET Framework 4.8 and .NET 8
- includes source code with the registered version
- offers royalty-free distribution for your applications
Download and order
Download Tesseract language data and place to tessdata folder.
Order OCR.NET component $100 USD (single developer license)
Order OCR.NET multi-license $300 USD (license for all developers in the company)
Order OCR.NET year upgrades $50 USD (registered users only)
Order OCR.NET year upgrades multi-license $150 USD (registered multi-license users only)
FAQ
Why am I encountering the error "An unhandled exception of type 'System.BadImageFormatException' occurred in Winsoft.Ocr.dll"?
This error occurs when the incorrect ocr.dll library is being used, such as attempting to use a 32-bit library in a 64-bit environment or vice versa.
To resolve this issue: place place the appropriate ocr.dll in the folder where your application's executable file (.exe) is located:
32-bit ocr.dll is located in the DLL\32bit subfolder.
64-bit ocr.dll is located in the DLL\64bit subfolder.
How can I resolve the "Cannot initialize Tesseract library" error?
Set the ocr.DataPath property to the folder containing the Tessseract language data files.
How can I increase OCR speed?
Use Tesseract language data from the tessdata_fast repository.
How can I increase OCR accuracy?
Use Tesseract language data from the tessdata_best repository.
How can I enhance OCR output quality?
Refer to the Tesseract documentation on Improving the quality of the output.
This error occurs when the incorrect ocr.dll library is being used, such as attempting to use a 32-bit library in a 64-bit environment or vice versa.
To resolve this issue: place place the appropriate ocr.dll in the folder where your application's executable file (.exe) is located:
32-bit ocr.dll is located in the DLL\32bit subfolder.
64-bit ocr.dll is located in the DLL\64bit subfolder.
How can I resolve the "Cannot initialize Tesseract library" error?
Set the ocr.DataPath property to the folder containing the Tessseract language data files.
How can I increase OCR speed?
Use Tesseract language data from the tessdata_fast repository.
How can I increase OCR accuracy?
Use Tesseract language data from the tessdata_best repository.
How can I enhance OCR output quality?
Refer to the Tesseract documentation on Improving the quality of the output.
tesseract-ocr group