Find JPEG resolution with PHP

Question

Calling all PHP gurus!

I understand that you can use getimagesize() to get the actual pixel height and width of an image in PHP. However, if you open an image in pho

Answer 1

SOLUTION: User the PHP JPEG Metadata Toolkit - downloaded from here: http://www.ozhiker.com/electronics/pjmt/

This toolkit has some handy scripts that will do all sorts of things, including viewing and editing of the header, metadata, and jfif information in jpeg file. Here is a script that gives you the XDensity and the YDensity (the x and y print resolution) of a jpg:

");
print( "YDensity:" . $image_info['YDensity'] . "
");

?>