#geotagimg
WhatsApp は写真から位置情報を削除するのか
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.
ジオタグとは？位置情報を持つ写真の裏側にあるタグ
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.
写真にジオタグを付ける方法：確実に効く四つの手順
Geotagging a photo means writing a latitude and longitude into the file itself. Here are the four steps, what the photo actually stores, and the one missing field that sends a correct coordinate to the wrong hemisphere.
写真からジオタグを削除する方法（そして確認する方法）
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.
編集できる写真メタデータのタグ：何を変更できるのか、その理由
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.
WordPress ジオタグ プラグイン: WordPress が残すもの
WordPress does not strip the location out of the photo you upload, but the copy your visitors download may have lost it. Which happens comes down to one setting.