Scanned documents are just some digital images with text, tables or graphics. They can’t be searched and edited by users because a word in a scanned PDF is not the same as a word in a .txt file. But, many software with OCR embed can turn image PDFs to searchable and editable documents. How does the powerful OCR make it come true? People who use OCR apps everyday may not know what the OCR exactly is. The speed of technology progress is always faster than we can accept. We should learn widely and deeply to keep pace with the times. Now, let’s know more about OCR technology.
As the Wiki described, OCR which stands for Optical Character Recognition is the mechanical or electronic conversion of scanned or photoed images of typewritten or printed text into machine-encoded/computer-readable text. It refers to the branch of computer science that involves photo-scanning of the text character-by-character, analysis of the scanned-in image, and then translating the images into character codes that the computer can manipulate (like ASCII codes).
Generally, OCR systems are made with two components, one is an optical scanner for scanning text, and the other is sophisticated software for analyzing images. And most of them use a combination of specialized circuit boards. Advanced OCR systems support to read text in large variety of fonts, but some of the handwritten text is still difficult to detect. Some commercial OCR systems are featured with the ability of reproducing formatted output that closely approximates the original scanned page including images, columns and other non-textual components.
OCR is already being used widely in various trades especially in the legal profession. With OCR applications, people searches that once required hours or days can now be accomplished in a few seconds. And you are also able to transfer a read-only PDF e-book or a scanned report directly into a writable file with an OCR Converter, and then electronically edit the file using a suitable processor on your computer.
Recommend some great PDF OCR Apps for Mac users:
PDF Converter with OCR – Convert native and scanned PDF to many editable document formats like Word, PPT, Html, Text etc.
PDF to Word with OCR – Turn scanned PDFs to .doc files for editing on Mac.
PDF to Excel with OCR – Extract tables from scanned PDF to Excel spreadsheet for data analysis.
PDF Toolset for Mac – Extract text and images from scanned PDF with a click.
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