PDF files are sometimes based on images which are usually created using a scanner or imaging device. You can convert a scanned PDF file to a searchable PDF file with OCR so that the text can be edited or updated in the document. In accordance with that scenario, this article explains how to convert a scanned PDF to a searchable PDF by OCR operations programmatically using C#.
- Scanned PDF to Searchable PDF by OCR – C# API Installation
- Convert Scanned PDF to Searchable PDF Programmatically in C#
Scanned PDF to Searchable PDF by OCR – C# API Installation
You can perform OCR operations on a scanned PDF file with Aspose.OCR for .NET API. Simply configure the API by downloading the DLL file from the New Releases section, or using the following NuGet installation command:
PM> Install-Package Aspose.OCRConvert Scanned PDF to Searchable PDF Programmatically using C#
You can convert a scanned PDF file to a Searchable PDF document while optically recognizing the text by following the steps below:
- Initialize AsposeOcr class instance.
- Recognize images from PDF using RecognizePdf method.
- Set different properties for OCR recognition with the DocumentRecognitionSettings class.
- Save OCR result as a searchable PDF file.
The code snippet below explains how to convert a scanned PDF to a searchable PDF document programmatically using C#:
Get Free Evaluation License
You can evaluate the feature to recognize text in scanned PDF with OCR operations without any limitations by requesting a free temporary license.
Conclusion
In this article, you have learned how to convert a scanned PDF file to a searchable PDF document by performing OCR operations on it programmatically in C#. Moreover, you can check several other OCR-related features offered by the API by visiting the documentation. Please feel free to contact us at the forum in case of any inquires.
