Copy link to clipboard
Copied
Hi everyone,
Could you please help on adjusting the export settings for the below requirements..
I am not so sure how to set DPI on Lightroom.. Thanks
1. 72 dpi JPEG files.
2. Longest axis should be no greater than 1440 pixels.
1 Correct answer
People often use DPI when they should be using PPI.
PPI stands for Pixels Per Inch, and is used for printing. Pixel dimensions / PPI = Printed dimensions in inches. In other words – the PPI value describes how many image pixels are used to print one inch of paper.
DPI stands for Dots Per Inch, and is the number of ink dots a printer uses to print one inch of paper. It's a property of the printer, not the image.
For screen viewing, PPI is irrelevant, it's only used for printing.
So set Long Edg
...Copy link to clipboard
Copied
People often use DPI when they should be using PPI.
PPI stands for Pixels Per Inch, and is used for printing. Pixel dimensions / PPI = Printed dimensions in inches. In other words – the PPI value describes how many image pixels are used to print one inch of paper.
DPI stands for Dots Per Inch, and is the number of ink dots a printer uses to print one inch of paper. It's a property of the printer, not the image.
For screen viewing, PPI is irrelevant, it's only used for printing.
So set Long Edge to 1440 pixels, and enter 72 in the Resolution field. Unless the image is going to be printed, it doesn't matter what number you enter.
Copy link to clipboard
Copied
Thanks for the clarification. Appreciate it.
Copy link to clipboard
Copied
[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]
Beware that many software and hardware vendors and print service providers use the terms DPI and PPI interchangeably, while most imaging experts make a distinction between PPI and DPI. That distinction is quite sensible but not as widely observed as the experts would prefer.
For example, my Epson Scan utility uses DPI for what the experts call PPI.
Adobe, Apple, and Microsoft documentation is littered with references to DPI, where the experts would use PPI: