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HTML code Alt codes U+2766 FLORAL HEART ❦ U+2767 ROTATED FLORAL HEART BULLET ❧ ☙ U+2619 REVERSED ROTATED FLORAL HEART BULLET ☙ ♡ U+2661 WHITE HEART SUIT ♡ or ♡ ♥: U+2665 BLACK HEART SUIT in device default representation ♥ or ♥ or ♥ Alt + 3 ♥︎: U+2665 BLACK HEART SUIT in explicit ...
Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was used to print the document.
Thirty forms of fleuron have code points in Unicode.The Dingbats and Miscellaneous Symbols blocks have three fleurons that the standard calls "floral hearts" (also called "aldus leaf", "ivy leaf", "hedera" and "vine leaf"); [7] twenty-four fleurons (from the pre-Unicode Wingdings and Wingdings 2 fonts) in the Ornamental Dingbats block and three more fleurons used in archaic languages are also ...
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ISBN represented as EAN-13 bar code showing both human-readable and machine-readable data. In computing, a human-readable medium or human-readable format is any encoding of data or information that can be naturally read by humans, resulting in human-readable data. It is often encoded as ASCII or Unicode text, rather than as binary data.
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The code words are also designed to be delta-decodable, so some code words are redundant. Each PDF data code word represents about 10 bits of information (log 2 (900) ≈ 9.8), but the printed code word (character) is 17 modules wide. Including a height of 3 modules, a PDF417 code word takes 51 square modules to represent 10 bits.
For instance, the black heart emoji is sometimes associated with the Black Lives Matter movement. You might see an advocate on social media post "#BLM🖤," symbolizing their support for the movement.