A megabyte (MB) is a unit of digital information equal to 1,024 kilobytes (KB). Therefore, 1 MB is equal to 1024 KB. Understanding this conversion is important when dealing with PDF files because it affects how easily you can share or store them. Larger PDF files, measured in MB, can be difficult to email or upload to certain platforms. By knowing how many KB are in an MB, you can better manage and optimize your PDF files for various purposes.