Resize Image After Upload


This plugin automatically resizes images (JPEG, GIF, and PNG) when they are uploaded to within a given maximum width and/or height to reduce server space usage. This may be necessary due to the fact that images from digital cameras and smartphones can now be over 10MB each due to higher megapixel counts.

In addition, the plugin can force re-compression of uploaded JPEG images, regardless of whether they are resized or not.

NOTE 1 – This plugin will not resize images that have already been uploaded.

NOTE 2 – The resizing/recompression process will discard the original uploaded file including EXIF data.

This plugin is not intended to replace the WordPress add_image_size() function, but rather complement it. Use this plugin to ensure that no excessively large images are stored on your server, then use add_image_size() to create versions of the images suitable for positioning in your website theme.

This plugin uses standard WordPress image resizing functions and will require a high amount of memory (RAM) to be allocated to PHP in your php.ini file (e.g 512MB).


  • Full preview of the settings screen.


  1. Upload the plugin ‘resize-image-after-upload’ to the ‘/wp-content/plugins/’ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. Edit the max-width/max-height settings under ‘Settings > Resize Image Upload’.
  4. Once active, just upload images as normal and it will just work!


Thank you!

Out of all the plugins I’m using, this is one of the most useful. Thank you for your hard work putting this together for the WordPress community!

Rename This Plugin

The NAME of the plugin is “Resize Image After Upload” but your description page shows this:
NOTE 1 – This plugin will not resize images that have already been uploaded.
The name of the plugin is wrong. Change the name and I’ll change my review.

Works great, used it on many sites

This plugin is perfect. Does what it says and does it very well. Its saved me tons of time, and now I don’t have to worry about clients uploading massive 10mb images anymore!


Read all 35 reviews

Contributors & Developers

“Resize Image After Upload” is open source software. The following people have contributed to this plugin.



Release date: 18th September 2015

  • [Fixed] Undefined option notices when running WordPress in debug mode.


Release date: 26th February 2015

  • [Update] After reports of the plugin resizing PDF files, added check to ensure the plugin only attempts a resize on JPEG, GIF, and PNG file types other than relying on the response from WP_Image_Editor.


This is a major under-the-hood release to change core workings of the plugin. The plugin still functions as normal, but the way in which it resizes images has now changed to use standard WordPress libraries. This means that should your server have better image processing libraries than the GD default (e.g. ImageMagick), then the resizing method should make use of them. This should improve the output of your resized images!

  • [Update] Plugin completely re-engineered to use WP_Image_Editor when resizing images.


Minor maintenance release:

  • [Fix] Correcting an error in the documentation.


Fix a few edge case bugs, I go and break the main functionality – that’s life! This is a maintenance release to fix a bug.

  • [Fix] Correct the logic behind which direction to perform resizing in.


This is a major maintenance release to squash a few long outstanding bugs.

  • [Update] Tidied up the plugin settings page.
  • [Fix] Significant number of bug fixes through extensive testing.
  • [Fix] Resizing wasn’t running on square images.
  • [FIX] Media upload was failing for BMP images.
  • [Fix] Replaced use of deprecated PHP functions with correct ones.


  • [Added] Ability to force re-compression even if resize is not required.
  • [Fix] Compression quality value was not adhered to.


  • [Update] Added ability to enter a resize value of zero (0) to prevent resizing in a particular dimension.


  • [Fix] Reverting code back to how it was in v1.3.0 after previous premature deployment of v1.4.0. Please use this version.


  • [Error] Code was deployed prematurely and should not have made its way to the live repository. Please do NOT use this version.


  • [Update] Added ability to set the JPEG compression quality level when JPEGs are resized. Default is 90.


  • [Update] Now only runs images through the resizer if required, i.e. the image is actually larger than the max height/width.


  • [Fix] Corrected functionality that sets default plugin options if the plugin version number changes.
  • [Fix] Adds default option for max-height value.
  • [Update] Updated the screenshot to include new maximum height field.
  • [Update] Increased the default maximum height and width to 1200px each.


  • [Update] Added ability to set maximum height (thanks @Wonderm00n).


  • [Update] Update to read me, no feature updates unfortunately.


  • [Added] Initial release.