| file_validate_image_resolution | includes/file.inc | If the file is an image verify that its dimensions are within the specified
maximum and minimum dimensions. Non-image files will be ignored. |
| file_validate_is_image | includes/file.inc | Check that the file is recognized by image_get_info() as an image. |
| hook_prepare | developer/hooks/node.php | This is a hook used by node modules. It is called after load but before the
node is shown on the add/edit form. |
| image_gd_crop | includes/image.gd.inc | Crop an image using the GD toolkit. |
| image_gd_resize | includes/image.gd.inc | Scale an image to the specified size using GD. |
| image_gd_rotate | includes/image.gd.inc | Rotate an image the given number of degrees. |
| image_get_info | includes/image.inc | Get details about an image. |
| image_scale | includes/image.inc | Scales an image to the given width and height while maintaining aspect
ratio. |
| image_scale_and_crop | includes/image.inc | Scales an image to the exact width and height given. Achieves the
target aspect ratio by cropping the original image equally on both
sides, or equally on the top and bottom. This function is, for
example, useful to create uniform sized avatars from... |
| user_file_download | modules/user/user.module | Implementation of hook_file_download(). |
