How do I remove grid lines from a photo?
Luckily you can quickly hide the pixel grid. To do this, go to View > Show > Pixel Grid. After clicking this your pixel rid will be removed from your canvas.
How do I remove a checkered background from a PNG?
The checkered background indicates transparency in an image. You can remove it by simply changing views in Photoshop. To do this, open your image and go to View > Normal. The checkered background will be gone and replaced with a white one.