I'm sure there are many tools that would work but since I have Gimp and am sort of kinda half way familiar with it, that's what I'd use. (1) Open the photo (2) Upsize the canvas(Image>Canvas Size)... unlock the aspect ratio and increase the height, you'd need to do the math. (3) Create a new layer(Layer>New Layer)... by default it should be the size of the canvas, which is what you want. (4) Use the paint bucket to fill the new layer with white. (5) Move the new layer behind/underneath the photo layer. (Drag it down in the Layer dialogue) If all goes well you'll have the original photo with white padding (only) at the bottom and it will be proportional to the 16x20 paper. There might be an easier way but that seems to work.

I posted the other day and it did not show up. I thanked you for the offer but posted that we made a fabulous find at Home Goods on Sunday!!! Two huge black mesh metal poppies!!! They are perfect to hang behind the red sofa and thought they were very different. They do have something similar on kohls.com but not as large. They must be 36" across, three dimentional and little fru fru metal centers. I did also thank you for your offer to borrow your photos. So thanks everyone and hoping I can learn to post pics again and will post one once she moves in and everything is in place. (I think I preview the post before and never submitted so thanks again for all of your offers of assistance.)

Sure Ogrose, Supplies: MODpodge paint brush photo or photo paper and printer gallery stretched canvas from craft store heavy book for a weighted press So easy, just paint the canvas black -don't forget the sides as these will be visable and give the finished look. Allow dry time. Paint the canvas front with Modpodge and place photo. I use a popsicle stick for an even placement. Put a hardcover (heavy) book on the inside of the canvas for a bubble free finish. Allow dry time. Optional-but I like the finish, paint the photo with Modpodge and again, allow for drying time. I gave these out to grandparents and family for gifts. We have a professionally done one next to the one I did and everyone always says, "Oh, I want more of these too, but they are so expensive..." Mine hangs at 7' high and no one can tell it's my work. If you want a custom size just use an exacto knife on the sides after you place the print/photo (before final finish coat) I also use industrial velcro to hang as they are light and that way I don't put holes in my logs (log home).

lisaam -- I had very little experience. I know how to use a sewing machine and had hemmed pants. I sewed maybe once every year or two. I have no desire to quilt or make clothing, but I'm really enjoying these shades! I'd like to try a tablecloth and decorative pillow covers. I need to do something with all the fabric I bought and decided not to use, LOL.