However, OCR technology is unable to solve these problems, and as a result, it is unable to process the content. For humans, reading text from a low-light or low-resolution image can be difficult, but it is possible. Optical character recognition often has problems when the source image has different levels of lighting or shadows and is not of sufficient quality. OCR software is responsible for automatically identifying, from an image, the symbols or characters that belong to an alphabet and then converting them into data.ĭespite being a very sophisticated and practical tool, it is not perfect. Optical character recognition consists of the digitization of texts. However, when converting a document with text or numbers to an image, the document ignores these numbers or text since it treats them as an image. It is easy to click anywhere in the document and start writing, erasing, or editing. As I mentioned before, the PDF format is capable of recognizing the content in it. That is, you can deny the write permissions but allow the reading of any page of the document, and, at the same time, you can enable the editing and reading of other specific segments.Īn old but useful trick is to convert the PDF document or at least the content you want to protect to an image. In addition, thanks to how the PDF format manages the document's content, it is possible to establish passwords that protect only certain pages or options of the document. Protecting the document with passwords will ensure that no one you have not authorized will be able to access the information. The correct option depends on your needs, but they are all effective.
Creating a non-editable PDF is not difficult, and several methods can achieve this result.
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