"The 'wrong' way is to use a PDF reader's markup tools, like the pen or highlighter, to scribble out or draw black bars across text. While these methods may hide text to the naked eye, a simple mouse move across the obscured line of text to select it, followed by a copy-and-paste, can often recover it."
"More advanced PDF tools can also easily remove any digital pen scratches and black highlights entirely, revealing the original text underneath. In short, the 'wrong' way is akin to placing a piece of electrical tape over the lines of a document: it obscures the lines from view, but it can easily be peeled off."
Chatbots are beneficial for summarizing complex documents like bank statements and medical reports. However, users must be cautious when uploading sensitive information. Proper redaction is crucial, as using simple markup tools in PDFs can leave data vulnerable. The incorrect method of redaction, such as using a pen or highlighter, does not provide true protection and can be easily reversed. Effective redaction requires more secure methods to safeguard personal information from potential breaches.
Read at Fast Company
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