Images are measured in pixels. if you are trying to upload an image directly onto a page by clicking the red Insert/Edit image button then the maximum pixel width you can use is 400px.
However you can also upload those images that are slightly larger images.
1. Click the Upload button to the bottom left of the control panel.
2. Select Larger images
3. Browse for the image on your computer and click upload.
4. Go to the page you want to add the image to
5. Click the Insert/edit image button
6. Select Library
7. Your Library
8. Select the image from the list and click Add to website
If you still experience problems then the image will need to be reduced in size. You can do this with most image manipulation software. A free an easy one to use is Picasa which can be found at
Picasa 3: Free download from Google
We hope this is helpful
Reason8 Support