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authorApprentice Harper <[email protected]>2016-10-19 07:14:42 +0100
committerApprentice Harper <[email protected]>2016-10-19 07:14:42 +0100
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treea0a3507d1f44255a1315051c3ed7671508b62c18 /FAQs.md
parent17300283d0e56595e82753187800af5382643d4e (diff)
Updated the FAQs and the main ReadMe
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@@ -1,6 +1,6 @@
# Overview
## What's this repository all about?
-Ebooks and DRM. That is, providing free tools to remove DRM from most ebooks.
+Providing free open source tools to remove DRM from your ebooks.
## What's DRM?
DRM ("Digital Rights Management") is a way of using encryption to tie the books you've bought to a specific device or to a particular piece of software.
@@ -13,9 +13,9 @@ Just download and use these tools, that's all! Uh, almost. There are a few, uh,
* The tools don't work on all ebooks. For example, they don't work on any ebooks from Apple's iBooks store.
* You must own the ebook - the tools won't work on library ebooks or rented ebooks or books from a friend.
* You must not use these tools to give your ebooks to a hundred of your closest friends. Or to a million strangers. Authors need to sell books to be able to write more books. Don't be mean to the authors.
-* Do NOT use Adobe Digital Editions 3.0 or later to download your ePubs. ADE 3.0 and later can use a new encryption scheme that the tools can't handle. While major ebook stores aren't using the new scheme yet, using ADE 2.0.1 will ensure that your ebooks are downloaded using the old scheme. Once a book has been downloaded with the new scheme, it's IMPOSSIBLE to re-download using the old scheme (without buying it again).
+* Do NOT use Adobe Digital Editions 3.0 or later to download your ePubs. ADE 3.0 and later might use a new encryption scheme that the tools can't handle. While major ebook stores aren't using the new scheme yet, using ADE 2.0.1 will ensure that your ebooks are downloaded using the old scheme. Once a book has been downloaded with the new scheme, it's IMPOSSIBLE to re-download using the old scheme (without buying it again).
-But otherwise, if your ebook is from Amazon, Kobo, Barnes & Noble or any of the ebook stores selling ebooks compatible with Adobe Digital Editions 2.0.1, you should be able to free your books from DRM.
+But otherwise, if your ebook is from Amazon, Kobo, Barnes & Noble or any of the ebook stores selling ebooks compatible with Adobe Digital Editions 2.0.1, you should be able to remove the DRM that's been applied to your ebooks.
## Where can I get the latest version of these free DRM removal tools?
Right here at github. Just go to the [releases page](https://github.com/apprenticeharper/DeDRM_tools/releases) and download the latest zip archive of the tools, named DeDRM\_tools\_X.X.X.zip, where X.X.X is the version number. You do not need to download the source code archive.
@@ -24,15 +24,12 @@ Right here at github. Just go to the [releases page](https://github.com/apprenti
First, unzip the archive. You should now have a DeDRM folder containing several other folders and a ReadMe\_First.txt file. Please read the ReadMe\_First file! That will explain what the folders are, and you'll be able to work out which of the tools you need.
## That's a big complicated ReadMe file! Isn't there a quick guide?
-Install calibre. Install the DeDRM\_plugin in calibre. Install the Obok\_plugin in calibre. Restart calibre. In the DeDRM_plugin customisation dialog add in any E-Ink Kindle serial numbers and your B&N account email address and password. Remember that the plugin only tries to remove DRM when ebooks are imported, not at any other time.
+Install calibre. Install the DeDRM\_plugin in calibre. Install the Obok\_plugin in calibre. Restart calibre. In the DeDRM_plugin customisation dialog add in any E-Ink Kindle serial numbers and your B&N account email address and password. Remember that the plugin only tries to remove DRM when ebooks are imported.
-# Breaking News
-### The recent (September 2016) Kobo Desktop update to version 4.0.x has added encryption to the database of ebooks. A test version of the obok plugin can be downloaded directly from the repository here: https://github.com/apprenticeharper/DeDRM_tools/tree/master/Obok_calibre_plugin
-
# Installing the Tools
## The calibre plugin
-### I am trying to install the calibre plugin, but calibre says "ERROR: Unhandled exception: InvalidPlugin: The plugin in u’[path]DeDRM\_tools\_6.4.3.zip’ is invalid. It does not contain a top-level \_\_init\_\_.py file"
-You are trying to add the tools archive (e.g. DeDRM\_tools\_6.4.3.zip) instead of the plugin. The tools archive is not the plugin. It is a collection of DRM removal tools which includes the plugin. You must unzip the archive, and install the calibre plugin (DeDRM\_plugin.zip) from a folder called “DeDRM\_calibre_plugin” in the unzipped archive.
+### I am trying to install the calibre plugin, but calibre says "ERROR: Unhandled exception: InvalidPlugin: The plugin in u’[path]DeDRM\_tools\_6.5.3.zip’ is invalid. It does not contain a top-level \_\_init\_\_.py file"
+You are trying to add the tools archive (e.g. DeDRM\_tools\_6.5.3.zip) instead of the plugin. The tools archive is not the plugin. It is a collection of DRM removal tools which includes the plugin. You must unzip the archive, and install the calibre plugin (DeDRM\_plugin.zip) from a folder called “DeDRM\_calibre_plugin” in the unzipped archive.
### I’ve unzipped the tools archive, but I can’t find the calibre plugin when I try to add them to calibre. I use Windows.
You should select the zip file that is in the “DeDRM\_calibre\_plugin” folder, not any files inside the plugin’s zip archive. Make sure you are selecting from the folder that you created when you unzipped the tools archive and not selecting a file inside the still-zipped tools archive.
@@ -43,21 +40,24 @@ We strongly recommend renaming the DeDRM\_tools\_X.X.X.zip archive (after extrac
## The Windows Application
### I've installed ActiveState Python and PyCrypto, but the Windows application won't run. What have I done wrong?
-Nothing. There's a bug in the current ActiveState Python Windows installer that puts the Tcl code in the wrong place. See [this comment of mine at ActiveState community](https://community.activestate.com/node/19090). Just move the Tcl code and the Windows app should run.
+Nothing. There's a bug in the current ActiveState Python Windows installer that puts the Tcl code in the wrong place. See [this comment of mine at ActiveState community](https://community.activestate.com/node/19090). Just move the Tcl code to the correct place manually and the Windows app should run.
## The Macintosh Application
### I can't open the Macintosh Application. Some message about it not being signed or something.
Try right-clicking and select open. That might give you the option to open it anyway. Otherwise you'll need to change your security settings to allow unsigned applications to run. You can probably change these back after running it for the first time.
+### I can't open the Macintosh Application at all. I get 'The aplication "DeDRM" can't be opened'
+Some unzip applications do not respect the execution bit setting. Try unzipping the main tools archive using the built-in Mac unzip utility.
+
# Using the Tools
## I can’t get the tools to work on my rented or library ebooks.
-Support for removing DRM from rented or library ebooks is not provided.
+The tools are not designed to remove DRM from rented or library ebooks.
## I've unzipped the tools, but what are all the different files, and how do I use them?
-Read the ReadMe_First.txt file and the ReadMe files included in the tools folder. That's what they're for.
+Read the ReadMe_First.txt file and then the ReadMe files included in the tools folder(s) you're interested in. That's what they're for.
## I have installed the calibre plugin, but my books still have DRM. When I try to view or convert my books, calibre says they have DRM.
-The DRM only gets removed when the ebook is imported into calibre. If the book is already in calibre, by default calibre will discard the newly imported file. You can change this in calibre's Adding books preferences page (Automerge..../Overwrite....), so that newly imported files overwrite existing ebook formats. Then just re-import your books and the DRM-free versions will overwrite the DRMed versions while retaining your books' metadata.
+DRM only gets removed when an ebook is imported into calibre. Also, if the book is already in calibre, by default calibre will discard the newly imported file. You can change this in calibre's Adding books preferences page (Automerge..../Overwrite....), so that newly imported files overwrite existing ebook formats. Then just re-import your books and the DRM-free versions will overwrite the DRMed versions while retaining your books' metadata.
## I have installed the calibre plugin or I am trying to use one of the other tools, but I don’t know where my ebooks are stored.
Your ebooks are stored on your computer or on your ebook reader. You need to find them to be able to remove the DRM. If they are on your reader, you should be able to locate them easily. On your computer it’s not so obvious. Here are the default locations.
@@ -84,11 +84,11 @@ If you cannot read the ebook on your current device or installed software, the t
## I have installed the calibre plugin, and the book is not already in calibre, but the DRM does not get removed. It is a Kindle book.
If you are on Windows 8 and using the Windows 8 AppStore Kindle app, you must download and install the Kindle for PC application directly from the Amazon website. The tools do not work with the Windows 8 AppStore Kindle app.
-If you are on Windows, using the Kindle for PC application, and your windows user name has accented or other non-ASCII characters in it, this might cause the plugin to fail. Create a new user account with an ASCII-only username. Install and register Kindle for PC there, and see if things work running calibre and the plugin in that user account.
+If you are on Windows, using the Kindle for PC application, and your windows user name has accented or other non-ASCII characters in it, this will cause the plugin to fail. Create a new user account with an ASCII-only username. Install and register Kindle for PC there, and see if things work running calibre and the plugin in that user account.
If this book is from an eInk Kindle, you must enter the serial number into the configuration dialog. The serial number is sixteen characters long, and is case-sensitive.
-If this book is from Kindle for Mac or Kindle for PC, you must have the Kindle Software installed on the same computer as your copy of calibre.
+If this book is from Kindle for Mac or Kindle for PC, you must have the Kindle Software installed on the same computer and user account as your copy of calibre.
If the book is from Kindle for PC or Kindle for Mac and you think you are doing everything right, and you are getting this message, it is possible that the files containing the encryption key aren’t quite in the format the tools expect. To try to fix this:
@@ -104,8 +104,8 @@ If the book is from Kindle for PC or Kindle for Mac and you think you are doing
## Some of my books had their DRM removed, but some still say that they have DRM and will not convert.
There are several possible reasons why only some books get their DRM removed.
* You still don’t have the DRM removal tools working correctly, but some of your books didn’t have DRM in the first place.
-* You added your books to calibre in large batches. For some unknown reason, sometimes calibre stops using the plugin after a while on a single import. Delete the books that still have DRM and import them into calibre in batches of twenty.
-* Kindle only: It is a Topaz format book and contains some coding that the tools do not understand. You will need to get a log of the deDRM attempt, and then send the book and the PID (shown in the log) for the book to Apprentice Alf, so that the tools can be updated.
+* You added your books to calibre in large batches. For some unknown reason, sometimes calibre stops using the plugin after a while on a single import. Please see [this issue](https://github.com/apprenticeharper/DeDRM_tools/issues/??/) at Apprentice Harper's github repository. As a work-around, delete the books that still have DRM and import them into calibre in batches of twenty.
+* Kindle only: It is a Topaz format book and contains some coding that the tools do not understand. You will need to get a log of the DeDRM attempt, and then create a [new issue at Apprentice Harper's github repository](https://github.com/apprenticeharper/DeDRM_tools/issues/), attaching the book and the log, so that the tools can be updated.
If you are still having problems with particular books, you will need to create a log of the DRM removal attempt for one of the problem books, and post that in a comment at Apprentice Alf's blog or in a new issue at Apprentice Harper's github repository.
@@ -121,8 +121,8 @@ Mostly likely, this is a book downloaded from Amazon directly to one of the newe
## Do the tools work on books from Kobo?
If you use the Kobo desktop application for Mac or PC, install the obok plugin. This will import and remove the DRM from your Kobo books, and is the easiest method for Kobo ebooks.
-## I registered Adobe Digital Editions with an Adobe ID before downloading, but my epub or PDF still has DRM.
-Adobe introduced a new DRM scheme with ADE 3.0 and later. Install ADE 2.0.1 and register with the same Adobe ID. If you can't open your book in ADE 2.01, then you have a book with the new DRM scheme. These tools can't help. You can avoid the new DRM scheme by always downloading your ebooks with ADE 2.0.1. Some retailers will require ADE 3.0+, in which case you won't be able to download with ADE 2.0.1.
+## I registered Adobe Digital Editions 3.0 or later with an Adobe ID before downloading, but my epub or PDF still has DRM.
+Adobe introduced a new DRM scheme with ADE 3.0 and later. Install ADE 2.0.1 and register with the same Adobe ID. If you can't open your book in ADE 2.01, then you have a book with the new DRM scheme. These tools can't help. You can avoid the new DRM scheme by always downloading your ebooks with ADE 2.0.1. Some retailers will require ADE 3.0 or later, in which case you won't be able to download with ADE 2.0.1.
## The DRM wasn't removed and the log says "Failed to decrypt with error: Cannot decode library or rented ebooks." What now?
You're trying to remove the DRM from an ebook that's only on loan to you. No help will be given to remove DRM from such ebooks. If you think that you have received this message for a book you own, please create an issue at github, or comment at the blog.
@@ -143,7 +143,7 @@ The Windows DeDRM application creates a log file in your home directory (C:\User
The tools only remove the DRM. No attempt is made to remove any personally identifying information.
## What do some of my Kindle ebooks import as HTMLZ format in calibre?
-Most Amazon Kindle ebooks are Mobipocket format ebooks, or the new KF8 format. However, some are in a format known as Topaz. The Topaz format is only used by Amazon. A Topaz ebook is a collections of glyphs and their positions on each page tagged with some additional information from that page including OCRed text (Optical Character Recognition generated Text) to allow searching, and some additional layout information. Each page of a Topaz ebook is effectively a description of an image of that page. To convert a Topaz ebook to another format is not easy as there is not a one-to-one mapping between glyphs and characters/fonts. To account for this, two different formats are generated by the DRM removal software. The first is an html description built from the OCRtext and images stored in the Topaz file (HTMLZ). This format is easily reflowed but may suffer from typical OCRtext errors including typos, garbled text, missing italics, missing bolds, etc. The second format uses the glyph and position information to create an accurate scalable vector graphics (SVG) image of each page of the book that can be viewed in web browsers that support svg images (Safari, Firefox 4 or later, etc). Additional conversion software can be used to convert these SVG images to an image only PDF file. The DeDRM and Kindlebooks tools from this site provide both versions of the Topaz ebook so that the user can choose which one to use. The K4MobiDeDRM plugin only produces the html version of the ebook. The html version can be manually cleaned up and spell checked and then converted using Sigil/calibre to epubs, mobi ebooks, and etc.
+Most Amazon Kindle ebooks are Mobipocket format ebooks, or the new KF8 format. However, some are in a format known as Topaz. The Topaz format is only used by Amazon. A Topaz ebook is a collections of glyphs and their positions on each page tagged with some additional information from that page including OCRed text (Optical Character Recognition generated Text) to allow searching, and some additional layout information. Each page of a Topaz ebook is effectively a description of an image of that page. To convert a Topaz ebook to another format is not easy as there is not a one-to-one mapping between glyphs and characters/fonts. To account for this, two different formats are generated by the DRM removal software. The first is an html description built from the OCRtext and images stored in the Topaz file (HTMLZ). This format is easily reflowed but may suffer from typical OCRtext errors including typos, garbled text, missing italics, missing bolds, etc. The second format uses the glyph and position information to create an accurate scalable vector graphics (SVG) image of each page of the book that can be viewed in web browsers that support svg images (Safari, Firefox 4 or later, etc). Additional conversion software can be used to convert these SVG images to an image only PDF file. The DeDRM calibre plugin only imports the HTMLZ versions of the Topaz ebook. The html version can be manually cleaned up and spell checked and then converted using Sigil/calibre to epubs, mobi ebooks, and etc.
## Are the tools open source? How can I be sure they are safe and not a trojan horse?
All the DRM removal tools hosted here are almost entirely scripts of one kind or another: Python, Applescript or Windows Batch files. So they are inherently open source, and open to inspection by everyone who downloads them. The source for any compiled pieces are provided right inside the tools themselves.
@@ -151,7 +151,7 @@ All the DRM removal tools hosted here are almost entirely scripts of one kind or
## What ebooks do these tools work on?
The tools linked from this blog remove DRM from PDF, ePub, kePub (Kobo), eReader, Kindle (Mobipocket, KF8, Print Replica and Topaz) format ebooks using Adobe Adept, Barnes & Noble, Amazon, Kobo and eReader DRM schemes.
-Note these tools do NOT ‘crack’ the DRM. They simply allow the book’s owner (and only the book’s owner) to use the encryption key information already stored someplace on their computer or device to decrypt the ebook in the same manner the official ebook reading software uses.
+Note these tools do NOT ‘crack’ the DRM. They simply allow the book’s owner to use the encryption key information already stored someplace on their computer or device to decrypt the ebook in the same manner the official ebook reading software uses.
## Why don’t the tools work with Kindle Fire ebooks?
Because no-one's found out how to remove the DRM from ebooks from Kindle Fire devices yet. The workaround is to install Kindle for PC or Kindle for Mac and use books from there instead.
@@ -163,12 +163,12 @@ Amazon changed the way the key was generated for Kindle for iOS books, and the t
Amazon turned off backup for Kindle for Android, so the tools can no longer find the key. The workaround is to install Kindle for PC or Kindle for Mac and use books from there instead.
## Why don't the tools work on books from the Apple iBooks Store?
-Apple regularly change the details of their DRM and so the tools in the main tools archive will not work with these ebooks. Apple’s Fairplay DRM scheme can be removed using Requiem if the appropriate version of iTunes can still be installed and used. See the post Apple and ebooks: iBookstore DRM and how to remove it at Apprentice Alf's blog for more details and links.
+Apple regularly change the details of their DRM and so the tools in the main tools archive will not work with these ebooks. Apple’s Fairplay DRM scheme can be removed using Requiem if the appropriate version of iTunes can still be installed and used. See the post Apple and ebooks: iBookstore DRM and how to remove it at Apprentice Alf's blog for more details.
## I’ve got the tools archive and I’ve read all the FAQs but I still can’t install the tools and/or the DRM removal doesn’t work
* Read the ReadMe_First.txt file in the top level of the tools archive
* Read the ReadMe file in the folder of the tools you want to use.
-* If you still can’t remove the DRM, ask in the comments section of Apprentice Alf's blog, reporting the error as precisely as you can, what platform you use, what tool you have tried, what errors you get, and what versions you are using. If the problem happens when running one of the tools, post a log (see previous questions on how to do this).
+* If you still can’t remove the DRM, ask in the comments section of Apprentice Alf's blog or create a new issue at Apprentice Harper's github repository, reporting the error as precisely as you can, what platform you use, what tool you have tried, what errors you get, and what versions you are using. If the problem happens when running one of the tools, post a log (see previous questions on how to do this).
## Who wrote these scripts?
The authors tend to identify themselves only by pseudonyms: