I did some tests and it seems that this issue is happening only in my local environment.
Following are the steps I did to reproduce the issue:
- Go to the online demo Default Example
- Open the Image Manager
- Open the folder Banners
- Select the image telerik_140x240_reporting.jpg
- Click on Image Editor
- Resize the image (Width: 100px, Height: 171px)
- Save the resized image
This is the result I've got in the online demo:
Size: 10,260 bytes - 140px - 240px
Image raw format: JPEG
Size: 26,056 bytes - 100px - 171px
Image raw format: PNG
This is the result I've got in my environment
Size: 131,072 bytes - 100px - 171px
Image raw format: BMP
Notice that in the RadEditor that I've installed locally the Image Editor is saving the image in BITMAP format and not in PNG format like the online demo.
The version I've installed is: 2008.3.1314.20
I will try to update the version I've installed and will check if the issue stills occur.