Windscribe.com on Instagram: "Printer tracking dots were developed by Xerox and Canon in the mid-1980s to trace printed documents back to specific printers. The technique uses nearly invisible, faint, yellow dots (about a tenth of a millimeter wide) printed in repeated arrays that can be decoded to reveal details like the print date, time, printer model, and even a unique serial number, allowing a document to be linked to its source later if needed. While this kind of tracing may seem minor comp