WhatsApp makes use of the UTF-8 character set and any characters within this set are supported. Being a richer messaging platform, additional formatting and media types are also supported over and above plain text. A maximum of 4096 characters can be sent at a time and messages that are longer will be truncated.
Rich text can include hyperlinks and formatting such as bold, italics, strike-through, code formatting, line breaks, and emojis.
Various media formats are also supported. These include the following popular formats:
Images – JPEG, PNG
Documents – PDF, MS Word, MS Powerpoint, MS Excel, plain text
Audio – ACC, MP4, AMR, MPEG, OGG, codec = OPUS
Video – MP4 (with H.264 video codec and AAC audio codec)
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