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Old 06-19-2023, 09:57 AM   #1
gianni_1
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Parallel conversion of multiple books
Hi,
it is possible to enable parallel book conversion? having to convert many books and having a CPU with 8 cores and 16 threads would be much faster...
Thanks...
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Old 06-19-2023, 10:18 AM   #2
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Calibre DOES use multiple cores in some cases. (a single job does NOT)
You can limit that

Preferences: Miscellaneous:

I have been using Calibre for over a decade and have never needed rapid MASS conversion as I can only read 1 book at a time and books (even if I send many) are sent SEQUENTIALLY.
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Old 06-20-2023, 11:58 AM   #3
gianni_1
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Originally Posted by theducks View Post
Calibre DOES use multiple cores in some cases. (a single job does NOT)
You can limit that

Preferences: Miscellaneous:

I have been using Calibre for over a decade and have never needed rapid MASS conversion as I can only read 1 book at a time and books (even if I send many) are sent SEQUENTIALLY.
Hi, theducks,
thanks for your answer.
Obviously I'm not reading all the books I put in Calibre, now I'm just creating a comic book library for my son. By the way, can I ask you for information? I have to insert several .cbz books that contain .png black & white images and a .jpg color cover and convert them to .pdf format, but all the time the cover is changed to black & white. I searched everywhere but I did not find a solution, do you know how I can do? All settings are the default. Thank you.
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Old 06-20-2023, 12:13 PM   #4
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Quote:
Originally Posted by gianni_1 View Post
Hi, theducks,
thanks for your answer.
Obviously I'm not reading all the books I put in Calibre, now I'm just creating a comic book library for my son. By the way, can I ask you for information? I have to insert several .cbz books that contain .png black & white images and a .jpg color cover and convert them to .pdf format, but all the time the cover is changed to black & white. I searched everywhere but I did not find a solution, do you know how I can do? All settings are the default. Thank you.
I've had that happen just the other day! Solution was to disable comic processing:

Click image for larger version Name: MWSnap 2023-06-20, 13_09_25.png Views: 66 Size: 61.8 KB ID: 202169
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Old 06-20-2023, 12:44 PM   #5
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Quote:
Originally Posted by gianni_1 View Post
Hi, theducks,
thanks for your answer.
Obviously I'm not reading all the books I put in Calibre, now I'm just creating a comic book library for my son. By the way, can I ask you for information? I have to insert several .cbz books that contain .png black & white images and a .jpg color cover and convert them to .pdf format, but all the time the cover is changed to black & white. I searched everywhere but I did not find a solution, do you know how I can do? All settings are the default. Thank you.
I don't read (our use) CBZ.
But look at Preferences: Input Options: Comic input
There is a tick and other settings that may do it.
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