at your chosen resolution, to represent 4" x 6". All MUST have the same pixels per inch, whether you use 300 ppi or another number.Ĭreate a blank canvas, specifying a number of pixels. As above, do any cropping, resampling and save each of the four files. If you are really cheap (like me) you can print four of those on one 4 x 6". I use a slight variation of this technique to print the 4:3 aspect ratio of my camera on 4圆" print, with extra border on the two sides.Įdit: Obviously, I was still on 3" x 3" and didn't notice that we had shifted to 2 x3".
(My numbers assume the overscan is 4.1 x 6.15" image, slightly cropped in the photofinsher) A rough guess is an extra 15 pixels top and bottom, 22 left and right but it is dependent on your photofinisher. You would have to slightly increase the border numbers above, but how much depends on who you send it to. The photofinisher has slight overscan and makes the image slightly larger than 4圆 but only prints 4圆. NOTE: You will have to learn to "tweak" the numbers a little bit. Save the file.Ĥ) This file will have the right aspect ratio and resolution to print 4圆". At 300 ppi, you need 150 pixel border top and bottom, 300 pixel border left and right.
You have to to add 0.5 inches at top and bottom and 1.0" left and right to pad 3"x3" to 4"圆". If you don't do that you HAVE to know how many pixels per inch you are working with.ģ) Next you use the "canvas size" option to add a border. 300 ppi is sufficient for photo-printing, so 3" x 3" would be 900 x 900 pixels. You have to crop it square, whether you use the entire "short" dimension, and crop some of the long, or whether you "zoom" in and select a smaller square.Ģ) Depending on resolution of your camera, you may want to resample to a reasonable resolution. What aspect ratio is your original picture, and how many pixels in each direction.ġ) I assume the starting picture is not square. Thanks for the suggestion Matome, however, when I try to resize a digital pic to 3x3" it doesn't seem to shrink appropriately - i have it set to resize to 3x3 INCHES and it appears it shrinks to 3x3 PIXELS, even though I have it set to resize inches.Īny suggestions?Irfanview works in pixels until you get to the printing stage.
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