09-12-2012, 09:29 AM | #1 |
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KindleGen INCREASES image file size?
I'm putting together an eBook with a lot of graphic content on the Kindle and need to keep the final file size below the 50Mb required to upload to KDP.
Now, the image content in the book is about 15Mb (if I add up all the file-sizes), but when Kindlegen 2.5 has build the book, the final file size is 53Mb. Clearly, KindleGen is reprocessing the images. But what's going on here and does anyone know how to suppress the reprocessing? Most of the files are under 63k, but some enjoy the new 127k limit. None of the images are larger than 127k. I've tried various maximum image sizes from 525x700 down to about 520x650 (I forget the actual dimensions). I get a little but of a decrease in the file size - originally I had 75mb and got a saving after reducing the compresson rate and image dimensions. Wondering if INCREASING the image quality and keeping the pixel size low might help - less noise in the final converted image?? ... to the photoshop batch processor. |
09-12-2012, 02:07 PM | #2 | |
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The difference in final file size is mainly due to the fact that the final file contains the entire ebook in the older MOBI format ... and the entire ebook in the newer KF8 format ... and the original source files from which the ebook was built. |
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09-12-2012, 02:28 PM | #3 |
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Thanks DiapDealer
... I am going to have to kill someone now... Seriously, what a hacked and shortsighted approach. KDP are going to have to change the 50Mb limit then, because when people start making righer content it's all going to come crashing down. |
09-12-2012, 02:34 PM | #4 |
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Use Kindlestrip to remove the source before uploading. That will likely get you below the 50Mb cap easily.
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09-12-2012, 02:59 PM | #5 |
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Use Calibre to generate a KF8 or Mobi file.
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09-12-2012, 04:22 PM | #6 | |
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09-12-2012, 05:06 PM | #7 | |
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09-13-2012, 08:46 AM | #8 |
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09-13-2012, 08:59 AM | #9 | |
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I managed to get from 58mb to 9mb by making some changes to the toolchain that puts everything together for Kindlegen. So, all's well that ends well. |
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09-13-2012, 09:10 AM | #10 |
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09-13-2012, 10:41 AM | #11 |
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If the eBook is being made to be sold at Amazon, then using Calibre to generate a KF8 might not be a good idea as KF8 might not be flushed out enough yet.
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09-14-2012, 05:33 AM | #12 | ||
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I can only assume that Kovid is making the distinction between the K7 formats and the K8, because the K7-type files, I have read, seem to be working, but anything with K8 formatting seem to be what's getting rejected. {shrug}. It's a perfectly legitimate distinction, but of course, over on the KDP forums, that distinction wouldn't be understood. Hitch |
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09-14-2012, 05:51 AM | #13 |
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I love calibre. I use it to convert a lot of files for personal use all the time. But I wouldn't be uploading calibre produced content to KDP even if I had a pretty solid promise it was "compatible." That's not bashing calibre in any way. It just doesn't seem prudent to me to use anything other than the official tool-chain for professional publication. I'm a bit OCD in that regard.
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09-14-2012, 07:10 AM | #14 | |
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It's not Calibre I object to, not at all. It's the Whovian "Resistance is Futile" when you try to tell people something that they don't want to hear that gets up my nose. ;-) Hitch |
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Tags |
image size, kindle, kindlegen |
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