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Thread: Photo DPI


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Permlink Replies: 4 - Pages: 1 - Last Post: Sep 25, 2017 1:40 PM Last Post By: Notjohn
doreen o'donovan

Posts: 1
Registered: 09/24/17
Photo DPI
Posted: Sep 24, 2017 3:35 PM
 
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How do I format photos for an ebook? I want to be sure I am doing this right, as it will be a fair amount of work. I understand I am supposed to take my photos and use photoshop to change the dpi from what it is now 72 -150 up to 300. Then save the photo and submit the photo files for my ebook. Is that correct?

When I go to save in photoshop, it asks me what quality to save it in. I assume I pick the highest quality. Please confirm.
Thank you for your help. Doreen

Edited by: doreen o'donovan on Sep 24, 2017 3:36 PM

Edited by: doreen o'donovan on Sep 24, 2017 3:37 PM
Donna St Felix

Posts: 5,141
Registered: 09/18/13
Re: Photo DPI
Posted: Sep 24, 2017 3:41 PM   in response to: doreen o'donovan in response to: doreen o'donovan
 
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doreen o'donovan wrote:
How do I format photos for an ebook? I want to be sure I am doing this right, as it will be a fair amount of work. I understand I am supposed to take my photos and use photoshop to change the dpi from what it is now 72 -150 up to 300. Then save the photo and submit the photo files for my ebook. Is that correct?

When I go to save in photoshop, it asks me what quality to save it in. I assume I pick the highest quality. Please confirm.


I assume you are working on a digital book, not a paperback book.
Keep in mind that you pay a delivery fee for your book when someone buys it so you don't want a 'meaty' book.
One thing that will help keep the 'meat' down is to remove metadata from each photo AND do them in black and white.
Have you figured out what size you want?
Do you know that an ebook is free-flowing and does not act like a paperback?
William Thompson

Posts: 998
Registered: 07/06/14
Re: Photo DPI
Posted: Sep 24, 2017 6:44 PM   in response to: doreen o'donovan in response to: doreen o'donovan
 
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The easiest way to be clear on how to solve your problem would be to read the image formatting rules in The Amazon Kindle Formatting Guidelines (free internet download). Learn the proper KDP rules first, then format your ebook.

Why not try my free Sigil plugins now available on MobileRead?

CustomCleanerPlus - an epub-specific custom cleaner for both html docs and epubs

ConvertAbs2RelCSSValues - converts all cms, mms, inch, point and pica values to relative 'em' values in the epub css.

StyleBender - manipulates, moves or removes html styles and inline styling at block level for epubs and html docs

AddKindleMediaQueries - Optimally dual-formats all epub image entries both for KF7 devices(in pixels) and KF8 devices(as a %)

You can download all these free plugins from The Sigil Plugin Index on the MR Forum

Tripod Solution...

Posts: 105
Registered: 05/12/14
Re: Photo DPI
Posted: Sep 25, 2017 9:59 AM   in response to: doreen o'donovan in response to: doreen o'donovan
 
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Doree,

Simple!
In preparing your book, use a resolution of 72 ppi for the MAC or 96 for the PC to create your images.
You can use GIF format for simple illustration. In fact, the GIF format is the only one that allows you to control the number of colors. A GIF file can contain up to 256 colors.This is a good way to reduce the filesize.
Use JPEG format for pictures.
Limit the size of your pictures. Optimize, optimize!

Charles G. Koonitz
Notjohn

Posts: 22,639
Registered: 02/27/13
Re: Photo DPI
Posted: Sep 25, 2017 1:40 PM   in response to: doreen o'donovan in response to: doreen o'donovan
 
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I upload images 800 pixels wide, typically 72 ppi, and compressed as necessary to meet Amazon's recommendation of 127 KB in size.

Photoshop Element's "save for web" feature does this just about right, most of the time. It's easy to increase or decrease the size as needed.

I also include a width="100%" instruction in the html, so that the image will fill the text area of the screen in even the hi-rez devices.

Usually you can find Photoshop Elements or Paint Shop Pro for about $100, well worth the investment IMHO.

If I'm also building a print edition, I scan the image at 300 dpi and save it as a TIF file, which is my permanent version. I save that as a jpeg 4.5 inches wide @ 300 dpi for CreateSpace, and in about 127 KB for the ebook.

(Don't trust KDP to publish a print edition. Don't trust CreateSpace to publish an ebook.)

Good luck! -- NJ

Notjohn's Guide to E-Book & Print Formatting

The blog:
http://notjohnkdp.blogspot.com
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