free open source pdf to text ocr for mac

Tesseract is one of the most popular OCR open-source engines developed in C++ and has wrappers available for Python, Java, Swift, Ruby, etc, and recognizes text from more than 100 languages. Check out this blog if you’re interested to know about various pre-processing options to improve the OCR quality. We’ll evaluate the tools for both of these scenarios.Īny OCR output is as good as the input document, so understanding the input document and accordingly designing pre-processing pipelines will give a performance boost irrespective of what OCR engine you use.

Digital Images: Typed / Handwritten text, considered as Scene Text Recognition or OCR in the Wildīoth of these areas have their own challenges and require different components(For example, pre-processing pipeline) in various stages of the OCR pipeline.

Scanned Documents: Printed / Handwritten text recognition, commonly considered as OCR problem.

While we have control over the Output(it can be plain text, hOCR, XML, Editable PDF), the nature of the input varies based on the use case and needs to be considered before building any OCR pipeline.

Optical Character Recognition converts Images/Scanned Documents(Input) into editable and searchable machine-encoded text(Output).

Free open source pdf to text ocr for mac