New Participant

Answered

Option to export 300dpi please !

Forum|Forum|4 years ago
September 27, 2021
8 replies
32996 views

I would like to export jpg in 300 dpi and it's impossible (only 240 when the original image was in 300 dpi)... i don't understand why it is not possible with Lightroom !
I paid to use it, it should be normal to have this basic option.

Correct answer JohanElzenga

The option to define the resolution in ppi is already available. You have to change the size to inches to activate it.

A

ashutosh0D45

New Participant

what should be the value of long side in that case?

Rob_Cullen

Braniac

The "value of long side" is for you to decide. It will determine the pixel dimensions of the image you export.

eg. If you specify 300ppi and Long Side = 20inches, you will get an exported file that is 6000pixels on its long side.

(ppi x inches = pixel dimension)

If you specify 300ppi and Long Side = 5inches, you will get an exported file that is 1500pixels on its long side.

Regards. My System: Windows-11, Lightroom-Classic 15.0, Photoshop 27.0, ACR 18.0, Lightroom 9.0, Lr-iOS 10.4.0, Bridge 16.0 .

R

Robbert5EF7

New Participant

Hi all,

I need to export a photo in Lightroom 2021 as a JPEG with 300 DPI, how do I do that?
Or can I only use Lightroom Classic for that, if so how?

Thanks!

Timothy.Spear

Inspiring

DPI is a screen and print concept.

In Classic they are nice and do the logic for you.

In Lr, you get to do the math. So determine the number of inches you want, and multiple by 300. Then in the export box, select "custom" under dimmension, and set the long side to be this number.

Tim

R

Robbert5EF7

New Participant

Thanks Tim!

JohanElzengaCorrect answer

Inspiring

The option to define the resolution in ppi is already available. You have to change the size to inches to activate it.

-- Johan W. Elzenga

M

Maciej220615733eo1

New Participant

Where I can change the size from cm to inches to get 300 dpi?

JohanElzenga

Inspiring

Choose Export as with custom dimentions. As I am typing this on my iPad, I can't post a screenshot but this should really not be hard to find...

-- Johan W. Elzenga

JP Hess

Inspiring

I suppose you could consider educating the client. Don't know how much good it would do. But the client is demanding something that is pointless.

You should do the comparative print experiment I described and show your client. Maybe that would put an end to his demand.

JP Hess

Inspiring

Just a thought. Does your plan to include Photoshop? You could always open the image in Photoshop and save it from there and specify the PPI setting that you need. An extra step, yes. But the client would be happy.

default089u6lttjo1sAuthor

New Participant

Yes ! I do that but when i have a short deadline, it's a step that i should avoid.

This little option on Lightroom would be very appreciable, really.

JP Hess

Inspiring

Too bad that the client doesn't really understand. You probably don't believe what I explained, but it is a fact. I've tried it myself. The PPI setting literally has no impact.

S

stunamii

Inspiring

The client is asking for 300 DPI because they plan to use the image for PRINT. PPI is fine printing the pixels. PPI does matter for PRINT but NOT for WEB.

JohanElzenga

Inspiring

The client is asking for 300 DPI because they plan to use the image for PRINT. PPI is fine printing the pixels. PPI does matter for PRINT but NOT for WEB.

By @stunamii

If a client is asking for DPI, then he clearly does not know what he's talking about. Images consist of pixels, not of dots, so you can't have DPI for a digital image, regardless how it's going to be used. DPI is what a printer does: putting ink dots on paper. But hey, never argue with a client if you can avoid it. Give him what he thinks he needs.

-- Johan W. Elzenga

JP Hess

Inspiring

Changing the DPI (or really PPI, pixels per inch) literally has no impact on the quality of the image. Regardless of what that setting is, if the image is 6000 x 4000 pixels, it is still 6000 x 4000 pixels. Changing that setting isn't going to change the size of the image. If you want to really know if the image will contain 300 PPI then you need to do some math. For instance, if you want to print and 8 x 10" print and you want to make sure it prints at 300 PPI then you need to ensure that it has sufficient pixels:

8 inches X 300 PPI = 2400 pixels
10 inches X 300 PPI = 3000 pixels

Consequently, you need an image that is 2400 x 3000 pixels. Then it doesn't matter whether the PPI setting is 72 or 300 or what ever. You will have the right number of pixels for what you need. Changing the PPI setting isn't going to affect the quality of the print in any way.

If you have difficulty believing this then take this challenge. If you have a way to save images at different PPI settings then save one at 72 PPI and one at 300 PPI and have them printed at the same size as an experiment and compare them. You will find as I have because I have done the experiment, that there is literally no difference in print quality. And, you will discover that there is no difference in file size of the two images.

default089u6lttjo1sAuthor

New Participant

Maybe but when client ask for 300 dpi, i have to give an image 300 dpi and it will be 200% more easy if i could be do that directly on Lightroom.

Thank you anyway for your answer.

LinSims

Braniac

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