Question: Is it possible to re-size an image when uploading directly or as an asset?
Question: When resizing an image during upload, how can I see if it is re-sized properly?
Answer:
When adding an image to the Image widget or Image asset, it is possible to re-size it. Step two of the upload process allows you to set the image size and step three allows you to set the size of the thumbnail. By default, resizing will be proportionate, though you can override this by unchecking the box to “Constrain Proportions.” The new size of the image will be visible in the image upload screen when you click off of the image size fields. When you click “Save” after setting the size, the image will be re-sized and the new “original” size will show the size you set it to.
A video of this functionality can be viewed here: Upload and Re-size Images