A

jpeg의 dpi정보를 가져오는 php함수가 있나요?

소스에서 dpi값을 지정해서 이미지를 저장하는것은 성공했는데
정작 쉬워보이던, dpi 정보를 뽑아오는건 자료가 영 안보이네요.

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