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This release isn't compatible with DeDRM for now according to: > This release DOES NOT work with the latest calibre beta that requires Python 3 for plugins. (U

by bambax 6y ago

This release isn't compatible with DeDRM for now according to: > This release DOES NOT work with the latest calibre beta that requires Python 3 for plugins. (Updated June 2020). https://apprenticealf.wordpress.com/ https://apprenticealf.wordpress.com/ So I'll have to wait until it is. DeDRM is pretty vital as I often buy books on Amazon and read them elsewhere. And even if not, I would not "buy" books that are in effect protected and can be taken back from me at any time, without being able to do anything about it.

toyg 6y ago
I’ve noticed this before, DeDRM and Calibre releases occasionally get out of sync, so to speak. They typically realign eventually, since they are very co-dependant (people use DeDRM mostly from Calibre, and a lot of people use Calibre just to access DeDRM functionality).
criddell 6y ago
Have the DeDRM devs figured out a perfect crack for Amazon's latest DRM (KFX)? Last time I checked the best option was to force Amazon to give you the book in an older format but then you lose all the typography improvements in KFX.
- kingbirdy 6y ago
  How does their DRM improve typography?
  - frosted-flakes 6y ago
    The DRM doesn't improve typography, the newer format does.
- Tijdreiziger 6y ago
  The KFX format is undocumented and has changed over time. Books containing new or unknown features may fail to convert or result in incorrect content or formatting. KFX is more highly processed than Amazon's KF8 (azw3) format, causing some details in the markup of the original e-book provided by the publisher to be lost during conversion. The exact HTML tags and styles originally used in the book are not retained in KFX format. However, all of the text and most of the formatting should be preserved. Images may have been reduced in resolution or converted to black and white to match the capabilities of the device to which they were delivered. PDF resources in KFX print replica books may have been split into multiple files. Links between pages across files will be broken if the PDF content is extracted. These limitations make KFX less suitable for archival and conversion when compared with KF8. [1] [1] KFX Input - https://www.mobileread.com/forums/showthread.php?t=291290 https://www.mobileread.com/forums/showthread.php?t=291290
- ratherbefuddled 6y ago
  I find for me the most usable experience is to convert to epub, strip all the CSS and fonts, and let my device sort out the typography according to my preference. I never really understand why people think the publisher is best placed to decide the style I choose to read in.
  - efreak 6y ago
    Why bother stripping them? Any decent reader should have settings to either override individual styles or ignore the stylesheet (FBReader has both, iirc it should be available for ios as well as Android) > I never really understand why people think the publisher is best placed to decide the style I choose to read in. Because that's how books have _always_ worked. My problem is more the huge number of images used in section breaks (and worse, occasionally used in chapter titles). Instead of using an image for a flourish or a section break, _please_ either find a character in your currently used font, or add a subset symbol font; using black images on a white background grabs my attention every time I change pages in dark mode, and even in light mode I can clearly see the difference in background color. Then there's the fact that a good number of them are low resolution, which, depending on reader and styling, causes them to be either pixelated, blurry, or too small to be useful in light mode.
    - ratherbefuddled 6y ago
      > Why bother stripping them? Any decent reader should have settings to either override individual styles or ignore the stylesheet (FBReader has both, iirc it should be available for ios as well as Android) Fonts are usually the biggest culprit in making epub sizes huge which on typical e-ink devices seems to affect load and page turn times. > Because that's how books have _always_ worked. Not really a reason to perpetuate it now we have digital media. > My problem is more the huge number of images used in section breaks (and worse, occasionally used in chapter titles). Instead of using an image for a flourish or a section break, _please_ either find a character in your currently used font, or add a subset symbol font; using black images on a white background grabs my attention every time I change pages in dark mode, and even in light mode I can clearly see the difference in background color. Then there's the fact that a good number of them are low resolution, which, depending on reader and styling, causes them to be either pixelated, blurry, or too small to be useful in light mode. In my experience stripping the CSS (and the fonts and images that are no longer referenced) fixes all of this.
Liskni_si 6y ago
It's possible to use DeDRM tools from the command line, the plugin just makes it easier. Simply git clone https://github.com/apprenticeharper/DeDRM_tools/ https://github.com/apprenticeharper/DeDRM_tools/ and then: python2.7 DeDRM_tools/DeDRM_plugin/k4mobidedrm.py \ -k ~/.local/share/wineprefixes/kindle/drive_c/users/*/Local Settings/Application Data/DeDRMPrefs/kindlekey.k4i' \ ~/Documents/My\ Kindle\ Content/book.azw . or python2.7 DeDRM_tools/DeDRM_plugin/ineptepub.py \ adeptkey.der book.epub book_dedrm.epub (I'm not exactly sure where to get adeptkey.der but I'm certain it can be extracted from an old python2 Calibre + DeDRM installation.)
- Mediterraneo10 6y ago
  Doing it from the command line is becoming more of a hassle now that Debian has stopped packaging Python 2.
  - efreak 6y ago
    I think pypy might be a simple way to get around that, iirc it's pretty self-contained and doesn't need to integrate much. I ran it from /opt for a while, but ~/.local should work too.
  - Liskni_si 6y ago
    Did they? There's no /usr/bin/python any more in testing/unstable since last week, but python2 is still there and I don't think it's going away very soon. Even if it did, you can always grab python2 from stable.
- mybooksyaar 6y ago
  Thanks. Works fine on a Mac. On a Mac, you can get your adeptkey.der running the script provided here: https://github.com/cweiske/inept/blob/master/scripts/ineptkey.py https://github.com/cweiske/inept/blob/master/scripts/ineptke...

by bambax 6y ago

toyg 6y ago

I’ve noticed this before, DeDRM and Calibre releases occasionally get out of sync, so to speak. They typically realign eventually, since they are very co-dependant (people use DeDRM mostly from Calibre, and a lot of people use Calibre just to access DeDRM functionality).

criddell 6y ago

Have the DeDRM devs figured out a perfect crack for Amazon's latest DRM (KFX)? Last time I checked the best option was to force Amazon to give you the book in an older format but then you lose all the typography improvements in KFX.

kingbirdy 6y ago
How does their DRM improve typography?
- frosted-flakes 6y ago
  The DRM doesn't improve typography, the newer format does.
Tijdreiziger 6y ago
The KFX format is undocumented and has changed over time. Books containing new or unknown features may fail to convert or result in incorrect content or formatting. KFX is more highly processed than Amazon's KF8 (azw3) format, causing some details in the markup of the original e-book provided by the publisher to be lost during conversion. The exact HTML tags and styles originally used in the book are not retained in KFX format. However, all of the text and most of the formatting should be preserved. Images may have been reduced in resolution or converted to black and white to match the capabilities of the device to which they were delivered. PDF resources in KFX print replica books may have been split into multiple files. Links between pages across files will be broken if the PDF content is extracted. These limitations make KFX less suitable for archival and conversion when compared with KF8. [1] [1] KFX Input - https://www.mobileread.com/forums/showthread.php?t=291290 https://www.mobileread.com/forums/showthread.php?t=291290
ratherbefuddled 6y ago
I find for me the most usable experience is to convert to epub, strip all the CSS and fonts, and let my device sort out the typography according to my preference. I never really understand why people think the publisher is best placed to decide the style I choose to read in.
- efreak 6y ago
  Why bother stripping them? Any decent reader should have settings to either override individual styles or ignore the stylesheet (FBReader has both, iirc it should be available for ios as well as Android) > I never really understand why people think the publisher is best placed to decide the style I choose to read in. Because that's how books have _always_ worked. My problem is more the huge number of images used in section breaks (and worse, occasionally used in chapter titles). Instead of using an image for a flourish or a section break, _please_ either find a character in your currently used font, or add a subset symbol font; using black images on a white background grabs my attention every time I change pages in dark mode, and even in light mode I can clearly see the difference in background color. Then there's the fact that a good number of them are low resolution, which, depending on reader and styling, causes them to be either pixelated, blurry, or too small to be useful in light mode.
  - ratherbefuddled 6y ago
    > Why bother stripping them? Any decent reader should have settings to either override individual styles or ignore the stylesheet (FBReader has both, iirc it should be available for ios as well as Android) Fonts are usually the biggest culprit in making epub sizes huge which on typical e-ink devices seems to affect load and page turn times. > Because that's how books have _always_ worked. Not really a reason to perpetuate it now we have digital media. > My problem is more the huge number of images used in section breaks (and worse, occasionally used in chapter titles). Instead of using an image for a flourish or a section break, _please_ either find a character in your currently used font, or add a subset symbol font; using black images on a white background grabs my attention every time I change pages in dark mode, and even in light mode I can clearly see the difference in background color. Then there's the fact that a good number of them are low resolution, which, depending on reader and styling, causes them to be either pixelated, blurry, or too small to be useful in light mode. In my experience stripping the CSS (and the fonts and images that are no longer referenced) fixes all of this.

Liskni_si 6y ago

It's possible to use DeDRM tools from the command line, the plugin just makes it easier. Simply git clone https://github.com/apprenticeharper/DeDRM_tools/ https://github.com/apprenticeharper/DeDRM_tools/ and then: python2.7 DeDRM_tools/DeDRM_plugin/k4mobidedrm.py \ -k ~/.local/share/wineprefixes/kindle/drive_c/users/*/Local Settings/Application Data/DeDRMPrefs/kindlekey.k4i' \ ~/Documents/My\ Kindle\ Content/book.azw . or python2.7 DeDRM_tools/DeDRM_plugin/ineptepub.py \ adeptkey.der book.epub book_dedrm.epub (I'm not exactly sure where to get adeptkey.der but I'm certain it can be extracted from an old python2 Calibre + DeDRM installation.)

Mediterraneo10 6y ago
Doing it from the command line is becoming more of a hassle now that Debian has stopped packaging Python 2.
- efreak 6y ago
  I think pypy might be a simple way to get around that, iirc it's pretty self-contained and doesn't need to integrate much. I ran it from /opt for a while, but ~/.local should work too.
- Liskni_si 6y ago
  Did they? There's no /usr/bin/python any more in testing/unstable since last week, but python2 is still there and I don't think it's going away very soon. Even if it did, you can always grab python2 from stable.
mybooksyaar 6y ago
Thanks. Works fine on a Mac. On a Mac, you can get your adeptkey.der running the script provided here: https://github.com/cweiske/inept/blob/master/scripts/ineptkey.py https://github.com/cweiske/inept/blob/master/scripts/ineptke...