The alphanumeric string provides several key pieces of information about the image: : Indicates the file contains an image.

: WhatsApp significantly reduces the file size to save bandwidth, which often results in lower resolution or "grainy" quality compared to the original.

is a standard file name generated by WhatsApp Messenger when an image is saved to a device's storage. The structure follows a specific logic that encodes the date and the source of the file. Decoding the Filename