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Finally I added a 20 pixel border using a dark brown from the image swatch so the print people don't get confused and try to adjust the photo.

Printing

2016 Blog comparison points me to Atlantic Photos wth Blacks being the best regular service.

Amateur Attempt

I pulled up Photoshop 7 and did my own samples. Not being an expert, the background is too dark so we can't see my daughter's arms properly,

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Files

Printing

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