![]() Compared to re-typing documents, well, there is no comparison in terms of speed, labor, cost, or accuracy. OCR – re-creates the text content of documents, and recognition accuracy is highly dependent on input image quality and characteristics.Īccepting all of the above, PDF Conversion and OCR in general are by far the most productive time-saving technologies in all of document creation practices.PDF Conversion and OCR – both are designed to re-create an accurate new version of the source PDF file by recognizing the layout of page elements and re-creating that appearance through the proper use of format controls in the output format.Two more major factors that require our focus sre the two primary document elements, text and format. Rule #2: Never use OCR when you don’t need OCR (see Rule #1).Rule #1: Always assume that OCR results are NEVER perfect.There are two primary rules that always apply to OCR. OCR (Optical Character Recognition) – recognizes the contents of an image file, applying algorithms to create text from pictures, as well as re-creating the layout and format of the source pages, for re-use in another format, such as Word or Excel.PDF Conversion – re-composes the contents of a PDF Normal file, including both the text and page layout, for re-use in another format, such as Word or Excel.These files require OCR to create a text version for editing and re-purposing.Ī short description distinguishes each of these processes, both are called “conversion” and both are performed by the Convert Assistant and the other methods we covered in Chapter 3 – Convert PDF. Neither of these types of files are editable in the sense we consider editing in Word or Excel. Searchable PDF does contain a Hidden Text layer, but you only see the Image layer. PDF Image or Searchable PDF – these forms of PDF can originate as scanned images, or sometimes are created as PDF in these formats.And as we saw in Chapter 5 – PDF Editing – Content Level, these files are editable, if allowed by Security settings. These PDF Normal files do not require OCR, they only need Conversion to another format. When you generate PDF from a program like that, you get a PDF that has perfectly useful text. PDF Normal (Text & Graphics) – this is the form of PDF that contains both text and graphical elements, the kind of PDF you get when you create the original file in a text-based application like Word or Excel. ![]() ![]() This distinction is based on the types or flavors of PDF: That’s where PDF Conversion and OCR comes to the rescue.įirst, we need to make a distinction between those two terms and two separate, very different functions. PDF is fantastic for sharing information within this rich format.īut sometimes you need to work with and re-purpose the information within a PDF file, then you notice that the info you need is stuck in those lovely PDF files. And it works across all platforms, from Windows to Mac to Linux, from phones to computers to the Web. It combines the familiar representational flexibility of paper documents with the rich navigation and searchability of digital documents. PDF is the greatest digital document format we have seen to date. This is an excerpt from my forthcoming book - "PDF Expert - Master PDF and OCR" 10 - Conversion and OCR ![]()
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