Kindle Question 2: Graphics

brewt · 07-28-2008, 04:36 PM

When I finally got to look at my Father's Kindle, which has on it books-of-books I've been making for him (using Mobipocket Creator) I noticed that some graphics weren't showing up.

If I had in my TOC, say, a List of Illustrations, with direct links to the illustrations (jpgs, gifs, or bmps), the link wouldn't go anywhere on the Kindle.

This works fine in Mobi on my Pocket PC, which is how I thought it would work in the Kindle, but maybe not: Do the graphics at the end of the links need to be embedded in an html page, or are there only certains sizes or formats supported, or something else? Or did I not add them correctly in Mobi?

Perplexed.

-bjc

brewt · 08-01-2008, 12:19 PM

As is often the case, I end up finding things out the hard way.

From the Amazon Kindle Forums, a post by their dtpadmin:

http://forums.digitaltextplatform.co...1&categoryID=3

To make sure an image uploaded to DTP (referenced from HTML) shows up in the largest possible size, use the following formatting options:

Images larger than 450 by 550 pixels are always re-sized by DTP

Images inside content (i.e. referenced by HTML) need to be 64kb or smaller, otherwise they may get re-sized during the conversion process.

Keep the image in an aspect ration of 9 to 11, which causes it to be re-sized to take up as much screen space as possible

The 'Preview' application does not convert images for display accurately. This means that it will show larger images to be rotated or re-sized even if they aren't going to be changed in the final Kindle content. This is a known issue with the Preview. As long as your images conform to the rules above, they will remain unchanged as Kindle Editions.

We'll see if that makes a difference.......

-bjc

wallcraft · 08-01-2008, 01:43 PM

The rules for MobiPocket Creator are different from Amazon's DTP (which seems to be sub-optimal for images). See Kindle Automatically Doubles Image Sizes.

Answering your original question, in the ebooks I have seen it is usual to embed the images into the body of the text, e.g.:

Code:

<div align="center"><img src="0001.jpg"/></div>

as well as (sometimes) including then in the TOC. It is also possible to have a separate TOC just for illustrations and include this as a separate guide item - but I don't know for sure thiat this will show up on the Kindle. Either way, ebedding the illustrations in the text will fix your problem. If it is too much work to find appropriate locations in the text, just put them all at the end of the main HTML body.

daffy4u · 08-01-2008, 01:44 PM

Here are a couple of threads you might want to check out where we (mostly wallcraft) played with images for the Kindle.

https://www.mobileread.com/forums/showthread.php?t=25442
https://www.mobileread.com/forums/showthread.php?t=25575

Edit: wallcraft, you were too fast for me

JSWolf · 08-01-2008, 02:19 PM

Would someone with a Kindle please give The Rebirth of Pan by Jo Walton a try to see if the graphics work please? The cover image is 500x615 and I'd like to know if it works. Thanks.

https://www.mobileread.com/forums/showthread.php?t=27146

daffy4u · 08-01-2008, 02:30 PM

Quote:

Originally Posted by JSWolf

Would someone with a Kindle please give The Rebirth of Pan by Jo Walton a try to see if the graphics work please? The cover image is 500x615 and I'd like to know if it works. Thanks.

https://www.mobileread.com/forums/showthread.php?t=27146

It looks great!

JSWolf · 08-01-2008, 02:37 PM

Quote:

Originally Posted by wallcraft

The rules for MobiPocket Creator are different from Amazon's DTP (which seems to be sub-optimal for images). See Kindle Automatically Doubles Image Sizes.

As you can see, a Mobipocket eBooks I have created with a cover image of 500x615 works fine on the Kindle's Mobipocket Reader. So why is it that DTP wants such small images?

JSWolf · 08-01-2008, 02:38 PM

Quote:

Originally Posted by daffy4u

It looks great!

Thank you. I'm glad it works.

ak13 · 08-23-2008, 03:36 AM

you can get even better quality if you size 600x800 (for my testing for pictures/comics) and set it to 4color scale gray in photoshop

07-28-2008, 04:36 PM	#1
brewt Boo-Frickety-Hoo-Erizer Posts: 251 Karma: 686 Join Date: Oct 2007 Device: Kobo Glo HD!	Kindle Question 2: Graphics When I finally got to look at my Father's Kindle, which has on it books-of-books I've been making for him (using Mobipocket Creator) I noticed that some graphics weren't showing up. If I had in my TOC, say, a List of Illustrations, with direct links to the illustrations (jpgs, gifs, or bmps), the link wouldn't go anywhere on the Kindle. This works fine in Mobi on my Pocket PC, which is how I thought it would work in the Kindle, but maybe not: Do the graphics at the end of the links need to be embedded in an html page, or are there only certains sizes or formats supported, or something else? Or did I not add them correctly in Mobi? Perplexed. -bjc

08-01-2008, 01:43 PM	#3
wallcraft reader Posts: 6,975 Karma: 5183568 Join Date: Mar 2006 Location: Mississippi, USA Device: Kindle 3, Kobo Glo HD	The rules for MobiPocket Creator are different from Amazon's DTP (which seems to be sub-optimal for images). See Kindle Automatically Doubles Image Sizes. Answering your original question, in the ebooks I have seen it is usual to embed the images into the body of the text, e.g.: Code: <div align="center"><img src="0001.jpg"/></div> as well as (sometimes) including then in the TOC. It is also possible to have a separate TOC just for illustrations and include this as a separate guide item - but I don't know for sure thiat this will show up on the Kindle. Either way, ebedding the illustrations in the text will fix your problem. If it is too much work to find appropriate locations in the text, just put them all at the end of the main HTML body.

08-23-2008, 03:36 AM	#9
ak13 Junior Member Posts: 2 Karma: 10 Join Date: Aug 2008 Device: kindle	quality you can get even better quality if you size 600x800 (for my testing for pictures/comics) and set it to 4color scale gray in photoshop

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08-01-2008, 12:19 PM	#2
brewt Boo-Frickety-Hoo-Erizer Posts: 251 Karma: 686 Join Date: Oct 2007 Device: Kobo Glo HD!	As is often the case, I end up finding things out the hard way. From the Amazon Kindle Forums, a post by their dtpadmin: http://forums.digitaltextplatform.co...1&categoryID=3 To make sure an image uploaded to DTP (referenced from HTML) shows up in the largest possible size, use the following formatting options: Images larger than 450 by 550 pixels are always re-sized by DTP Images inside content (i.e. referenced by HTML) need to be 64kb or smaller, otherwise they may get re-sized during the conversion process. Keep the image in an aspect ration of 9 to 11, which causes it to be re-sized to take up as much screen space as possible The 'Preview' application does not convert images for display accurately. This means that it will show larger images to be rotated or re-sized even if they aren't going to be changed in the final Kindle content. This is a known issue with the Preview. As long as your images conform to the rules above, they will remain unchanged as Kindle Editions. We'll see if that makes a difference....... -bjc

08-01-2008, 01:44 PM	#4
daffy4u I'm Super Kindle-icious Posts: 6,734 Karma: 2434103 Join Date: Apr 2008 Location: Long Drive, Calinadia Candafornia Device: KDXG, KT, Oasis	Here are a couple of threads you might want to check out where we (mostly wallcraft) played with images for the Kindle. https://www.mobileread.com/forums/showthread.php?t=25442 https://www.mobileread.com/forums/showthread.php?t=25575 Edit: wallcraft, you were too fast for me

08-01-2008, 02:19 PM	#5
JSWolf Resident Curmudgeon Posts: 73,877 Karma: 128597114 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Would someone with a Kindle please give The Rebirth of Pan by Jo Walton a try to see if the graphics work please? The cover image is 500x615 and I'd like to know if it works. Thanks. https://www.mobileread.com/forums/showthread.php?t=27146