Help - how do I send a picture at 300DPI

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Fordsabroad

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Gordon
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A friend of mine wishes to use some pictures I have on Flickr for a publication. The publisher insists the image is sent as a JPEG at 300DPI. The final size of the print will be 10"x8".
The problem is all of my images have been cropped and PPd for screen, some of them are heavily cropped from the original image which is a raw taken on a 1DX mk2.
I am happy to go back into LR and adjust the ratio to meet the 10x8 format but do not have a clue on how to ensure that they arrive with him by email at 300DPI.
I understand that there is no direct correlation between PPI (which is what I see on LR) and DPI.
Any help explained in easy steps would be greatly appreciated. I work with LR and PS.
 
Open the image in photoshop and ensure that it's cropped to the correct aspect ratio.

Then you go to Image > Image Size, set the dpi to 300 and change the dimensions to what you need.

It will either reduce the image size to the correct resolution, or upscale the image to meet 300 dpi. Its advised to use Bicubic Sharper if the image is reducing, or Bicubic Smoother if its increasing in size, but you can try whichever works best :)
 
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Yet another instance of someone who does not understand what "DPI" means.
 
No need to even use Photoshop, simply crop to a 4 x 5 aspect in Lightroom and then export to a 3000 x 2400 pixel JPEG image at 300ppi.

DPI (Dots Per Inch) is a printing term and refers to dots of ink laid down on the paper, images are made up of pixels and printing resolution should be referred to as PPI (Pixels Per Inch).
 
PhilH04 said:
simply crop to a 4 x 5 aspect in Lightroom and then export to a 3000 x 2400 pixel JPEG image at 300ppi.
Click to expand...

If you select pixel dimensions in LR, it ignores the ppi value.

If you assume the publisher meant ppi instead of dpi, you just need a jpeg image that is 3000 x 2400 if it's being printed to 10 x 8.

I really don't know why publishers and people who print continue to muddy the water by using dpi to describe electronic images when they should know better. Dots are a physical thing. Just tell photographers they need to supply an image at 6000 x 4000 or whatever. It's no surprise photographers are confused. Thankfully the question was answered in the 1st response.
 
Harlequin565 said:
If you select pixel dimensions in LR, it ignores the ppi value.

If you assume the publisher meant ppi instead of dpi, you just need a jpeg image that is 3000 x 2400 if it's being printed to 10 x 8.

I really don't know why publishers and people who print continue to muddy the water by using dpi to describe electronic images when they should know better. Dots are a physical thing. Just tell photographers they need to supply an image at 6000 x 4000 or whatever. It's no surprise photographers are confused. Thankfully the question was answered in the 1st response.
Click to expand...
Because we have done for years, simples ;)

You wouldn't believe what I get from some clients for printing, they think if it looks OK on their screen then it should be OK to print :eek:
 
Harlequin565 said:
If you select pixel dimensions in LR, it ignores the ppi value.

If you assume the publisher meant ppi instead of dpi, you just need a jpeg image that is 3000 x 2400 if it's being printed to 10 x 8.

I really don't know why publishers and people who print continue to muddy the water by using dpi to describe electronic images when they should know better. Dots are a physical thing. Just tell photographers they need to supply an image at 6000 x 4000 or whatever. It's no surprise photographers are confused. Thankfully the question was answered in the 1st response.
Click to expand...

In this specific context yes it would be easier to specify pixel dimensions, but when printing your own images it's easier to understand print size, and resolution of the print at its given size. Luckily Photoshop makes resizing and setting resolution easy :)
 
I'd suggest just re-exporting from LR at 10" X 8", 300ppi.

As for the dpi/ppi quibbles, do we really need to have this discussion every time someone asks about sizes/printing? If someone were asking a question about resolution and appearance on screen then perhaps the pedantry is worth putting up with, but in this case it was about printing, and in that context ppi = dpi.
 
Thank you all for your input. I have now sent the pictures which, after reading the posts here was easy to do.
 
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