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Old 11-30-2013, 09:39 PM   #1
pargoo
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Changing covers problem!

Guys, I want to change some ugly covers on ebooks I’ve purchased from amazon to those of the original paperbacks, but I have been unable to achieve this using the deDRM plugins loaded in calibre, which I learned about recently.
- I know: you’re not supposed to talk about DRM, but I emphasize I’m trying to remove it because that seems to be the only way to achieve my original goal of changing the covers. These are ebooks I’ve paid for and I’m NOT trying to give them to anyone else or view them on any other device other than my own Kindle Paperwhite…
Following the advice on a certain person’s blog I have removed and de-registered Kindle for PC – which I had already done weeks ago after experimenting briefly with it – and have deleted both my \AppData\Local\Amazon folder as well as my \MyDocuments\My Kindle Content folder. He follows this advise with the words ‘ you don’t have to use K-for-PC if you don’t want to’(?) but seems to state earlier in his blog that it is required Do I NEED to re-install Kindle for PC for this process to work? The blog doesn’t make this 100% clear. If so, does it need to be installed *before* calibre – in other words, do I have to uninstall calibre, install K-for-PC and re-install calibre and then download/install the deDRM plugins? I have a Paperwhite, and do not read – and have no desire to read – ebooks on my PC.
As things stand I can import ebooks and edit the metadata easily, but despite successfully converting - in this case - azw3’s into epub before changing the cover, converting to epub to *preserve* the alteration and thence back to azw3 and finally saving it my ‘new’ covers still aren’t displayed on my PW. All I get is the generic Kindle cover, not the new one or even the old one. Is there something about the cover files themselves that I’m missing? I am baffled. Everything seems to be right, but still no luck 
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Old 11-30-2013, 09:57 PM   #2
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Quote:
Originally Posted by pargoo View Post
Guys, I want to change some ugly covers on ebooks I’ve purchased from amazon to those of the original paperbacks, but I have been unable to achieve this using the deDRM plugins loaded in calibre, which I learned about recently.
IMHO you are discussing installation of DRM removal tools.
Please stop doing this.
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Old 11-30-2013, 11:39 PM   #3
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You are allowed to discuss usage of the tools abstractly: for instance, recommending people do a google search for apprentice alf, just so long as mobileread doesnt suddenly become a place people come to get how-to guides. So don't worry on that score.

As far as your problem goes: how are you transferring the books? If you aren't using calibre, you should be.
  • Any book that was liberated from Amazon will have an Amazon ASIN and not display as a personal document; this also means the Kindle expects to see a thumbnail for the cover under %KINDLEDRIVE%\system\thumbnails, and if it doesn't see one, it assumes there is no cover.
  • Any book that does not have the Amazon ASIN will show up as a personal document; since Amazon doesn't send you official thumbnails for sideloaded books, a thumbnail willl be extracted from the book and stored with the other thumbnails.
When you sideload an Amazon-liberated book, which retains the ASIN metadata, Amazon doesn't know you need that thumbnail, and you get this exact problem. If you use calibre to send to device, it will also generate and transfer the appropriate thumbnail. I do know that sometimes, trying to overwrite a book causes the thumbnail to get disconnected from the book, but I solve this by deleting, letting Kindle recognize it was deleted, then resending.

Another thing. Well, two actually. First, it's worth noting that all your ebooks can be downloaded to your kindle paperwhite, in addition to the Kindle 4 PC, so if you have a kindle, you don't really need the app for anything.

Second, you DO NOT need to convert your books to epub and back!!! When calibre sends your books to a device, it automatically updates all metadata AND the covers as well. This does not work for .mobi which are very bad at this sort of thing, however it does work for the newer .azw3. And what this does is embeds the cover image into the .azw3 itself; yet the cover you want to change is (I think) the cover view on the book list, yes? This depends entirely 100% on the thumbnail which calibre can create for any file whatsoever!

You may want to check the thumbnails folder, and see if anything is there.
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Old 12-01-2013, 06:14 AM   #4
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Thank you for your reply. I was trying to be as discreet about it as possible. I had heard of the thumbnail issue, and will pursue it further...
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Old 12-02-2013, 02:03 AM   #5
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Ironic, isn’t it. I’ve spent a week wasting my time beating my head against a brick wall trying to change ugly covers when it finally dawned on me today that the covers don’t make any difference to the booklist whatsoever. I had always assumed and been told nothing to the contrary they were created based upon the ebook's embedded cover, but not so!
I downloaded a copy of David Brin’s excellent ‘Startide Rising’ – after having to change my amazon registration to get the one featuring the nice UK cover instead of the hideous US version! – and was stunned when I opened it in calibre to be presented not with the cover I was expecting but a plain white page with some text showing the title and author’s name plus a Penguin symbol and nothing more. I thought I was being cheated. What covers were displayed seemed to be completely random. I was even more baffled when I transferred it to my Paperwhite and the thumbnail displayed in the booklist was in fact the proper UK version which I had chased after in the first place! Realizing it was only the thumbnails that mattered, I copied all my books onto my PW, opened them one by one so they would create a thumbnail for each then re-connected via cable, opened the system\thumbnails directory, copied them all to my PC, used Photoshop to resize my scanned covers, made them greyscale, saved them using the Kindle-generated filenames and copied them all back to my PW. Upon ‘ejecting’, my booklist was populated by all the thumbnails I had created from my scanned paperbacks. Bliss!
Live and learn, I suppose. Hope this helps anyone else as confused by the issue as I was, especially after wasting time with DRM which had no bearing on the outcome anyway.
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Old 12-02-2013, 02:41 AM   #6
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Second, you DO NOT need to convert your books to epub and back!!! When calibre sends your books to a device, it automatically updates all metadata AND the covers as well. This does not work for .mobi which are very bad at this sort of thing, however it does work for the newer .azw3. And what this does is embeds the cover image into the .azw3 itself; yet the cover you want to change is (I think) the cover view on the book list, yes? This depends entirely 100% on the thumbnail which calibre can create for any file whatsoever!

You may want to check the thumbnails folder, and see if anything is there.
Indeed it is, pargoo, and so long as the thumbnail exists you see that in cover view. The embedded cover is only used in non-Amazon books, to extract a thumbnail, and when in the book the very first page is... the cover!!!

Many books cheat you out of your rightful cover -- Penguin is notorious for this -- but the thumbnail is still correct at least, which is most of what matters.

It's good to hear you finally got your covers back from them!

And if you want your covers inside the book, too, then use calibre to download metadata for the covers -- it will automatically be added when the book is sent to your Kindle, or you can use Polish ebook to fix it now.
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Old 12-03-2013, 01:47 PM   #7
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Hi, I have a similar issue that I think is relevant to this thread, but if it isn't let me know so I create a new one.

I bought "The Name of the Wind" by Patrick Rothfuss from Amazon... and the file itself seems to have no cover. I'd be ok with the thumbnail you guys mention, but I'm using a Kindle screensaver "hack" that shows the cover for the book you're reading as the screensaver...... problem is with this particular book I'm seeing the title page instead of the actual cover.

Is there any way to tweak the cover with Calibre on the AZW3 WITHOUT losing the Amazon features like X-Ray and Sync? I've successfully tweaked the cover, but the result is recognized by my Kindle as non-official, so I lose the X-Ray.
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Old 12-03-2013, 02:39 PM   #8
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If you add the book to calibre, and update the metadata, then resending the book to your kindle from calibre will update all supported metadata on the fly. It does this with minimal changes, by only overwriting the changed fields, and it will be recognized as the same book.

AZW3 (but not MOBI) recognizes the cover as supported metadata, and calibre will fix this. Just use calibre to set a new cover (Edit Metadata ==> download cover) and then Send to Device.

Do NOT do an azw3 to azw3 conversion! This performs MANY changes in addition to updating the cover, that is why the book is no longer the same book!
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Old 12-03-2013, 02:44 PM   #9
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Quote:
Originally Posted by eschwartz View Post
If you add the book to calibre, and update the metadata, then resending the book to your kindle from calibre will update all supported metadata on the fly. It does this with minimal changes, by only overwriting the changed fields, and it will be recognized as the same book.

AZW3 (but not MOBI) recognizes the cover as supported metadata, and calibre will fix this. Just use calibre to set a new cover (Edit Metadata ==> download cover) and then Send to Device.

Do NOT do an azw3 to azw3 conversion! This performs MANY changes in addition to updating the cover, that is why the book is no longer the same book!
I tried this and lost the X-Ray feature, should I erase the book in the Kindle itself before resending it via calibre?

Edit: Disregard the above, sorry, it seems like the X-Ray feature just takes a few seconds to kick in and stop being greyed-out.

I erased all versions of the book from my Calibre Library, connected my Kindle, copied over to my Library the original AZW3 straight from the cloud. Updated the metadata, changed the cover, and used "Send to Device".

The Kindle itself shows only one version of the item, but browsing the device in Calibre I see TWO versions, one that Calibre shows the cover preview for and one that only shows the default icon where the Preview should be .... and it seems like no matter what I do the cover isn't changed: "Go To > Cover" takes me to the title page, like it does in the original file. Any ideas?

Last edited by Calleja; 12-03-2013 at 02:58 PM.
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Old 12-03-2013, 03:14 PM   #10
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Wait a minute, this is probably the problem. I am so used to doing this that I totally forgot I do (and that others don't):

All your Kindle book features are created by using a special sidecar folder in your documents folder.

Your book is saved as %Kindle Drive%\documents\{book-title}_{asin}.azw3 which I shall assume is Drive E, so that would be:
Quote:
E:\documents\The Name of the Wind_ The Kingkiller Chronicle_ Day One_B0010SKUYM.azw3
The sidecar folder (.sdr) would therefore be:
Quote:
E:\documents\The Name of the Wind_ The Kingkiller Chronicle_ Day One_B0010SKUYM.sdr\
See Attachment for a screenshot of what this folder looks like. As you see, there is an author file, an x-ray file, the .phl archive which contains public highlights, the azw3r and azw3f which have notes/highlights and current reading position and the .apnx file with the pagenumbers.

These file/folder names must match up for the Kindle to recognize the appropriate sidecar to your book. You will have to rename the file to match this folder. By default, calibre saves it as (relative to E:\documents\) : {author_sort}\{title}\{title} - {authors} which will look like (unless you renamed the book while in calibre):
Quote:
Rothfuss, Patrick\The Name of the Wind: The Kingkiller Chronicle: Day One\The Name of the Wind: The Kingkiller Chronicle: Day One - Patrick Rothfuss.azw3
I take care of this all by adding a custom column to calibre called {#origfile} which contains the original filename, then use a custom save path to make calibre automatically save with this filename if available. If you like, I can guide you in setting all this up.
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Old 12-03-2013, 04:02 PM   #11
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First of all, THANK YOU SO MUCH for taking the time to help me.

Now.. indeed, my Kindle does have both a Rothfuss, Patrick folder and a The Name of the Wind_ The Kingkiller Chronicle_ Day One_B0010SKUYM.sdr folder... I merged the .sdr folder that was inside /Rothfuss, Patrick (I saw only 2 files inside it) with the correctly named one and... nothing. Still no cover.

So, just to be sure, are we 100% certain that it's possible to take a DRMed AZW3 file, change its cover, and not lose any of the features that come with DRM? Because if you guys do this regularly then I'm being thick and I may need more step-by-step instructions

Edit: Wait, is the cover one of the things that are saved in the .sdr folder? Because I don't find that particular file/shortcut there...

Last edited by Calleja; 12-03-2013 at 04:38 PM.
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Old 12-03-2013, 04:49 PM   #12
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Don't merge the folder. The files inside also have to have the appropriate names. Just rename and move the azw3 from the Rothfuss, Patrick folder to the documents folder. All will be well.

It's all right, this issue is very thick, so it's not you. This is a lot of confusing arbitrary indexing stuff, and it took me a while to pick up on it too. Although I am always open to giving instructions.

It is 100% certain, I have 300 books like that on my kindle right now, so you came to the right place.
(Also, it's not the DRM that has the features, it is the Kindle software and format.)

Also, the cover is not stored in the sdr, it's actually in E:\system\thumbnails\ which is a system folder (hence the name) so you will have to perform some settings-fu to view it... or just type it manually into the address bar.

And the covers only depend on having the right ASIN in the filename, so they will match all books with that filename (there should only be one....)
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Old 12-03-2013, 05:01 PM   #13
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Are you sure you see the cover you added via Calibre when you do Go To > Cover in your Kindle?

I've been reading all over the place and apparently there are two types of covers for Kindle books: the thumbnail in system/thumbnails, which is used for the Cover view, and the actual cover inside the AZW3, which is like any other "page" in the book,part of the file itself.

Now, the screensaver hack needs the AZW3's actual cover, the thumbnail is not the one it displays. As far as I know, I can be of course dead wrong, what we're doing with the sdr file won't change the cover in the AZW3 itself. Calibre is only changing metadata, right?

What I need is to change the cover in the AZW3 itself without the Kindle detecting it as a Personal Document instead of the original book file from the store. Think this is possible?
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Old 12-03-2013, 05:13 PM   #14
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Yes, and calibre's send to device can update BOTH of those locations, but only in supported formats: AZW3 and EPUB.

As far as calibre is concerned, covers ARE metadata, although not a type every format supports: i.e. MOBI.

Go to your book in calibre, right-click and select polish ebook, make sure update cover is checked, and click ok.

Then view the book in calibre viewer -- you should see the new cover updated.

The old version will be saved as ORIGINAL_AZW3 and can be right-clicked to "restore the ORIGINAL_AZW3 format", so it's perfectly safe.
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Old 12-03-2013, 05:18 PM   #15
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You may want to try clearing your previous attempts at getting this to work:

delete the book (both copies) AND the .sdr folders.

Re-download the book through the Kindle.

delete the .azw3 but NOT the .sdr

Use calibre Send to Device to transfer the book. If you like, confirm the book is updated by polishing as per my previous post.

Go to the .azw3 calibre sent, in E:\documents\Rothfuss, Patrick\The Name of the Wind: The Kingkiller Chronicle: Day One\. Move it to the E:\documents\ folder.

rename it to match the .sdr folder.
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