Do you avoid BMPs for the Internet at all times?
  v2.0 Posted at 14/12/2015 8:46 PM by Martin Li

Never use bitmap images (.BMP format) on your website or in emails. BMP is an uncompressed format, and typically has an unlimited color palette. This results in unnecessarily large file sizes, which makes it unsuitable for pretty much everything.

As an alternative, the most ideal format for Internet-ready lossless images is PNG.

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