eaxjp

Image will be shrink in the case of automatic JPEG and PNG format to upload the image. 
There are the following features in isShrinker WordPress Plugin.
Can specify the maximum file size. 
Keep aspect ratio. 
Convert image inclination from inclination information of image
If you upload, such as iPhone app slope of image because reduced after correction 
it appears in the blog exactly as it appears in the iPhone.
The maximum file size of the image is 50KB by default 
Length of the long side of the image is 640px by default 
And it is with, but you can change from the management screen of WordPress.
Upload png image ‘watermark.png’ to plugin directory and then watermark will be enable. 
Watermark add on right bottom of image. 
If watermark enabled water mark transparency setting is enable.
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isShrinker

When uploading, it will shrink the image automatically. The feature is  keeping the aspect ratio and  maximum file size can be specified.

Nicolas Juen

This plugin allow create custom image sizes for your site. Override your theme sizes directly on the media option page. 
You can regenerate all the sizes you have just created and choose which one you wanted to regenerate. 
You can now get all the code to copy and paste to your function theme file. 
Now you can use the generated sizes directly into your posts and insert images at the right size ! 
Now you choose if you want display the size in the post insert image. 
Now you can regenerate the images one by one in the ‘Medias’ general pane. 
Now you can regenerate the images by bulk action in the ‘Medias’ general pane. 
Now you can regenerate the image sizes on single attachment edit page.
I have added a timer so when you regeneration your thumbnails, you can know approximately when the regeneration will be ended. 
I have improved the php and javascript, you can know if the image have been regenerated or not or if there is an error and which one.
Contribute on https://github.com/Rahe/Simple-image-sizes

Simple Image Sizes

Donate link: http://www.beapi.fr/donate/ Tags: images, image, custom sizes, custom images, thumbnail regenerate, thumbnail, regenerate, cropping Requi …

isShrinker vs Simple Image Sizes