A client ordered a print size that does not work well with the image; he ordered a 5 x 15 and a 7 x 15 looks much better. However, MPIX labs, whom I use through Zenfolio, does not offer a 7 x 15. I contacted them and they will trim a print to 7 x 15. Good for them!
What I need to do place the image on a canvas in Adobe Photoshop to get the desired size. Then use the text tool in Photoshop and write in the white border "please trim print."
Then save this as a pdf file, and order the a 10 x 15 of that image. They will trim to 7 x 15.
Can someone direct me to the steps that I need to do for this?
If I understand you correctly, you want the canvas size to be 10x15 but the image to only fill a space 7x15? If this is the case, there are a couple of ways you could do this.
Open the image file, crop it to 7x15. Then go to the Edit>Canvas Size option and create a canvase size of 10x15. Position the image usng the dialog box in the center of the canvas. Make sure that the canvas color is white. Then you can open the text tool and add the text to the white edges of the canvas that now surrounds your image.
Try selecting the text tool and then clicking on a spot on the canvas where you want to add the text. You should be able to type from there. If you need to resize the text, you can select what you have typed and then use the tools at the top of the toolbar to adjust the size, color, etc. (Make sure the text color is not the same color as the background of the canvas. You might be typing and just not be able to see it.)