#photo metadata
WhatsApp 会删除照片中的位置信息吗？
A photo sent the ordinary way arrives without its coordinates. The identical file sent as a document arrives with them intact. Here is the evidence for each, and the popular claims that cannot be sourced at all.
可编辑的照片元数据标签：能改什么，为什么要改
A photo carries three blocks of metadata and most of two of them are yours to change. Here is the working subset: each tag, what it holds, why you would touch it, and what reads it.
如何在电脑上给照片添加地理标记（无需软件）
Windows will show a photo's location but will not let you add one, and the Mac Photos app can accept a location that never reaches the exported file. Here is what each actually does, and the browser route that avoids both.
如何为 Google Business Profile 照片添加地理标记
Google's photo uploader has no location field, so a geotag has to go into the file before it leaves your computer. Here is how to put it there, and what three published tests say it will and will not do.