When you have an image that you want to print as a gallery wrapped canvas but you do not want any of it to wrap around the edges, you can digitally stretch the file! The additional space needed for wrapping is 2" on every side. For this guide I will be preparing my image to print as an 8"x12" gallery wrapped canvas. This means that my file should be 12"x16" @ 300dpi to account for the wrapping of the canvas around the frame. To do this I need to prepare my canvas with an additionally 2" digitally stretched border on every side.
Photo credit: Carmen Evans
Step 1: Crop your image.
When adding a digitally stretched border I like to make my original crop about .3" larger so that I have some tolerance where the wrapping will begin. Instead of cropping my image to exactly 8"x12" I am going to crop it to exactly 8.3" x 12.3".
Step 2: Open "Canvas Size"
Step 3: Expand your canvas
Expand your canvas to 12"x16" and make sure that the center box is selected in your 'Anchor' setting.
Step 4: Ruler guides
Drag your ruler guides 2" in from every side and then make a second set of ruler guides where the additional image information ends. Do this on all four sides.
Step 5: Select area to stretch
Step 6: Layer via copy
Right click on the space inside the highlighted space and select 'Layer Via Copy'. This will create a new layer on your file that only contains the rectangular highlighted area.
Step 7: Stretch
Select the new layer and use your keyboard shortcut to select it, this is usually "Control + T" or "Windows + T". Stretch this highlighted portion all the way to the edge of the file until the white border is completely filled. Repeat this step on the parallel side.
Step 8: Merge Completed Layers
Highlight your three current layers and right-click, then select 'Merge Layers'. This will make one combined layer to work with.
Step 9: Layer Via Copy and Finish
Repeat this same process on the left and right sides, making sure to select all of the edge from the very top to the bottom of the canvas. Stretch the same way you did for the top and bottom.
Save your image as a .JPG. The sides of the canvas will show the stretched image and the front will be the original crop!