Note that imagecreatefromgif() uses the first frame of an animated image, as pointed out in a vague way in usernote #82912

# Usernote was deleted hereafter

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329882 c90b9560-bf6c-de11-be94-00142212c4b1
List all formats supported by GD on the introduction page, including relevant notes

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329883 c90b9560-bf6c-de11-be94-00142212c4b1