This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WP Images OTF Plugin


What does this plugin do?

This plugin generate image thumbnails only when site need it, when someone call function with needed size,
and saves disk space when image is uploaded to media library.
You don’t need to use add_image_size() function.

How it works?

  1. Upload image to media library
  2. Change function wp_get_attachment_image_url() to get_otf_image_url() in your wordpress template
  3. When function is invoke the first time, the image is dynamically adjust, create and stored
  4. Page serve image in need size


function get_otf_image_url(
    $image_id, $size_name, 
    $width = 0, $height = 0, 
    $crop_mode = ["center", "center"], 
    $mime_type = "image/jpeg", $quality = 70)


  • Required:
    *$image_id – attachment id
    ***$size_name** – dynamic size name
    ***$width** – image width
    ***$height** – image height
  • Optional
    *$crop_mode – image crop mode
    ***$mime_type** – result image mime type
    ***$quality** – result image quality

Return Value

  • Returns an url string


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Contributors & Developers

“WP Images OTF Plugin” is open source software. The following people have contributed to this plugin.


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