MobileRead Forums - View Single Post - Dealing with Kindle for PC/Mac 1.19 and KFX in calibre

slowpokezzz · 01-18-2018, 07:59 PM

Method 2 - Disable KFX support in Kindle for PC/Mac

As an alternative, a method is available to prevent versions 1.19, 1.20 and 1.21 from making use of KFX format.

Exit the Kindle program.
Open a command window (PC) or terminal window (Mac).
Cut and paste the appropriate command for your operating system to disable the renderer-test program.

Mac:
Code:
```
chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test
```
This prevents the renderer-test program from executing, blocking the use of KFX.

Mac Note: If the chmod command fails with a permission error try again using sudo.
After restarting the Kindle program any books previously downloaded in KFX format will no longer open. You will need to remove them from your device and re-download them. All future downloads will use the older Kindle formats instead of KFX although they will continue to be placed in one individual subdirectory per book.

If you keep getting a Terminal error, such as:
-bash: mod: command not found

Use this instead:
sudo chmod -x /Incompatible\ Software/Kindle.app/Contents/MacOS/renderer-test

Not sure why, but my Kindle App was buried in a folder called "Incompatible"... I don't really care why. I'm leaving there.

Anyways, I can 100% confirm that this method worked for me.

01-18-2018, 07:59 PM	#345
slowpokezzz Junior Member Posts: 1 Karma: 10 Join Date: Jan 2018 Device: PaperWhite	Method 2 - Disable KFX support in Kindle for PC/Mac As an alternative, a method is available to prevent versions 1.19, 1.20 and 1.21 from making use of KFX format. Exit the Kindle program. Open a command window (PC) or terminal window (Mac). Cut and paste the appropriate command for your operating system to disable the renderer-test program. Mac: Code: chmod -x /Applications/Kindle.app/Contents/MacOS/renderer-test This prevents the renderer-test program from executing, blocking the use of KFX. Mac Note: If the chmod command fails with a permission error try again using sudo. After restarting the Kindle program any books previously downloaded in KFX format will no longer open. You will need to remove them from your device and re-download them. All future downloads will use the older Kindle formats instead of KFX although they will continue to be placed in one individual subdirectory per book. If you keep getting a Terminal error, such as: -bash: mod: command not found Use this instead: sudo chmod -x /Incompatible\ Software/Kindle.app/Contents/MacOS/renderer-test Not sure why, but my Kindle App was buried in a folder called "Incompatible"... I don't really care why. I'm leaving there. Anyways, I can 100% confirm that this method worked for me.