How to extend or fill an image in Photoshop

Extend

Before.

After

1. Use Crop Tool to extend image with white background.

2. Use Rectangular Marquee Tool to select the area you want to extend.

3. Ctrl+T to highlight the selected area.

4. Now, hold Shift key, use mouse to move the right point to right.

5. Press Enter to complete.

Fill

1. Use Crop Tool to extend image with white background.
2. Use Rectangular Marquee Tool to select the area you want to extend and the area you want to be filled.

3. Go to Edit>Fill. Make sure Contents is Content-Aware and model is Normal. Click OK.

1. It may take a while to complete .