Photoshop PPI question for enlarging pictures

eric-holmes

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I have a project I am working on for a customer. She wants to use a series of three of my pictures. One 16x24 and two 8x10's. I am currently working on the composition of the 16x24. When I crop and resize in photoshop, it makes the ppi 87. That doesn't seem very well. What should it be for a 16x24? Is there a formula or do you just pick 300 or 400?
 
Which Photoshop do you have?

First click on Image > Duplicate. (always edit a duplicate, not the original)

After putting in the inch dimensions you want,

enter 300 in the Resolution box and make sure it is set to pixels/inch

You need to put a check mark in the boxes for:
  • Constrain Proportions
  • Resample Image
Select Bicubic Sharper as the algorithm in the box right under "Resample Image". (I know it says for reductions, but mine and other's tests show it works very good for enlargements too.)

Then, click OK!

Some labs have a minimum resolution. At Mpix, it is 100 ppi. If you upload an image that is 99 ppi, no dice, they won't print it.
 
Last edited:
I have Photoshop elements.
 
Select Bicubic Sharper as the algorithm in the box right under "Resample Image". (I know it says for reductions, but mine and others test show it works very good for enlargements too.)

+1. And then some.
 
lol dang, I forget the important stuff... 8
 
Not to get too off topic, but has anyone used any plug ins like OnOnes Genuine Fractals or Alien Skin's Blow Up for making super sized enlargements?
 

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