Conversion from OCR to PDF
Optical character recognition is a process that aids in converting handwritten or printed documents into an editable piece of text. OCR converts the scanned images into text by recognizing each character. This recognition is achieved by mapping the symbol with an alphanumeric character present in a character based file. By editable piece of text we refer to the text that can be manipulated using a word processor, a spreadsheet or any other text editor. An intermediate step in the process where OCR converts the scanned images to text is the conversion of these images into PDF documents which acts as a base for the recognition of characters. OCR converts scanned PDF documents into text effectively and efficiently depending on the clarity of the image scanned.
Factors Affecting the Conversion
For the OCR to convert images into text it must first analyze the image view of each character in the scanned text file and then it should match it to the character based electronic file. This factor makes it very difficult to make sure that a character scanned is properly recognized by OCR software. The output text quality of an OCR is affected by a number of factors. They are: low quality image scan, combination of several fonts in the scanned files which makes it difficult because both the character and the font should be recognized, underlined and italicized fonts which most often result in blurring of the quality and configuration of the separate characters.
Requisites of Software Used in OCR Conversion
There are various types of software that help to perform OCR convert. However one must ensure that they have the following functionalities. Superior recognition accuracy and layout retention which involves better signature recognition capabilities and advancement in table detection, recreation of the logical structure of the document and formatting, unmatched productivity and ability to convert photo shots as editable files in a single step. The next generation technology has facilities to do automatic straightening of lines and correction of image resolution. There are a number of tools available in the net which satisfy the above features.