If you need to remove text from a document from a PDF before sending it-and you can't simply eliminate information in the source document used to create the PDF and make a fresh one-you can turn to several apps to snip secret, legally prohibited, embarrassing, or proprietary text out of a PDF before sending it on its way. Two notable incidents: the accidental release of information in a filing in 2011 in long-running litigation between Apple and Samsung, and the disclosure of key allegations in the Paul Manafort prosecution in 2019 alleging his connection to a purported Russian-connected associate. These black-box overlays have led to embarrassing and legally disastrous situations stretching back a couple of decades. The copied text can then be pasted into a word processor or text editor. Someone who would like to extract the text beneath the obfuscation can just drag over the area with a selection tool or select Select All on the page. In most cases, however, drawing boxes over text in a PDF just adds the boxes-it doesn't delete the text underneath them. That copying part can lead to oceans of trouble, when people trying to remove details from a PDF before distribution-redacting details from a court case, government documents, or even inter-company communications-by drawing black boxes over the words and paragraphs they want to protect. The format is designed to store text and both bitmapped and vector images, with the text available for searching, copying, and even editing in the proper app. Widely-used PDF files capture text and images nearly exactly as they display in the application that created them.
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