Open the Photoshop document you want to add a photo to. 

Simply tap  from the toolbar on the left side of the canvas. 

In the options panel that opens, select the source of the photo you want to add: 

• Camera Roll: Tap Camera Roll to see all your camera roll photos.
• Files: Tap Files to browse through your file Locations on your iPad. You can also add selected files to Favorites and find tagged files under the Tags section.
• Libraries: Tap Libraries to access the images saved in your Creative Cloud Libraries, and other third-party apps that are installed on your iPad and signed-in. Library assets are placed unlinked and flattened for now.
• Camera: Tap the camera icon to open the camera on your iPad. On opening the camera for the first time, a dialog opens: "Photoshop would like to access the Camera". Tap OK to grant access. Capture a photo with your iPad. Tap Retake to capture a better shot or tap Use Photo to continue.

Tap a photo to select it from any of the above sources. The selected photo opens in the Transform mode. Select a transform operation to apply on the photo before placing it in the canvas. To learn more about transform operations, see Apply transform operations.

Tap Done to apply transformations and add the photo to your canvas. Tap Cancel to go back to the open document and start the process again.