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.
EXIF与元数据指南
深入解析相机EXIF元数据、IPTC标签以及图片版权信息。
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什么是地理标记？带位置信息照片背后的标签
Geotagging is the act of storing a location inside a photo file itself. Here is exactly which EXIF tags hold it, and what happens to them when you upload.
如何从照片中删除地理标记（并验证结果）
Several controls that look identical do completely different things, and one of them refuses to touch a camera-written location at all. Here is how to clear the location and confirm it is gone.
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.
如何从照片文件中提取 GPS 位置
The coordinates are already inside the file. Here is how to read them out, why the number arrives without its minus sign, and which tags tell you whether the location is a measurement or a guess.