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#1 2018-10-07 02:08:59

powerfulphotography
Member
From: Wembley
Registered: 2017-12-31
Posts: 64
Website

Quality of downloads

In the "Add-ons" section of the "Album templates" and under photos for purchase, does the quality slider represent the dpi of the downloaded image? and if so does 100% represent 300dpi?


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#2 2018-10-07 02:17:55

rod barbee
Moderator
From: Port Ludlow, WA USA
Registered: 2012-09-24
Posts: 15,202
Website

Re: Quality of downloads

It represents jpg quality level.


Rod 
Just a user with way too much time on his hands.
www.rodbarbee.com
ttg-tips.com, Pangolin test site, Backlight 1.1.1 test site

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#3 2018-10-07 03:15:16

powerfulphotography
Member
From: Wembley
Registered: 2017-12-31
Posts: 64
Website

Re: Quality of downloads

Is there any way I can set the dpi as I would like a dpi of 300 for printing and 240 the web social media downloads.

Last edited by powerfulphotography (2018-10-07 03:16:39)


If at first, you don't succeed try, try then go to the forum.
https://powerfulphotography.co.uk/

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#4 2018-10-07 03:21:55

rod barbee
Moderator
From: Port Ludlow, WA USA
Registered: 2012-09-24
Posts: 15,202
Website

Re: Quality of downloads

DPI doesn't really matter, especially on the web. Just set the pixel dimensions.

For example, if you set the pixel dimensions to 2400 on the long side, then that can be printed as large as 8 inches at 300 dpi or 10 inches at 240 dpi. (personally, I use 240 dpi for printing on my Epson printer). The person doing the printing can set the dpi.

For the web, it rather depends on the monitor being used. 96 ppi seams typical. In the old days, 72 ppi was often referred to.
(not counting retina displays)

a 2400 pixel image at 96 ppi would yield a huge image on a website (25 inches)
So for the web or social media, you probably don't need much more than 1000 pixels on the long side. I don't remember exactly what Facebook recommended, but it's somewhere in the 1000px range.
more here: https://www.foregroundweb.com/dpi-ppi-irrelevant/


Rod 
Just a user with way too much time on his hands.
www.rodbarbee.com
ttg-tips.com, Pangolin test site, Backlight 1.1.1 test site

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#5 2018-10-07 05:05:23

Matthew
Administrator
From: Seoul, South Korea
Registered: 2012-09-24
Posts: 5,453
Website

Re: Quality of downloads

I wrote this article about the pointlessness of DPI some years ago. Still holds up, and I think it worth a look.

http://ce4.theturninggate.net/2012/02/2 … ith-truth/

The Quality slider maps to Lightroom's Quality slider for JPEG export, when using Lightroom's Publish Services. When using the web-based publisher in Backlight 2, then we expect you would have prepared your JPEG files before uploading, and so it serves no purpose.

For more information on Lightroom's Quality settings, see this excellent article by Jeffrey Friedl.

http://regex.info/blog/lightroom-goodies/jpeg-quality


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