08-19-2023, 03:58 AM | #1 |
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azw4 to pdf failure
Hi, I need to convert a file from azw4 to pdf but it fails with below message but I cant make out why its failed. Thanks for your help in advance:
Spoiler:
Last edited by theducks; 08-19-2023 at 10:12 AM. Reason: Please Spoiler Log files |
08-19-2023, 04:03 AM | #2 |
creator of calibre
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First, update calibre your version is very old. And azw4 is PDF in a wrapper already. Use the kindleunpack plugin to extract the pdf directly no need for conversion.
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08-20-2023, 01:59 AM | #3 |
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Many thanks. I have now unpacked the pdf from the azw4 format.
The file is very large and I'd like to compress it. However, when I try the reduce file size in acrobat 10 pro, I get message that: "This PDF document has been digitally signed. The size of digitally signed files cannot be reduced." I tried Google Bard, which suggested saving in PDFA/1a format but this actually increased the file size from 55MB to 56MB. 1. Is it possible to remove the digital signature eg via copying to another format or printing to a new pdf file? 2. Are there anyways to substantially reduce the file size please? |
08-20-2023, 02:35 AM | #4 |
want to learn what I want
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08-20-2023, 04:46 AM | #5 |
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hi, so I downloaded the trial of nitro pdf pro as you suggest. How can I use it to reduce the file size of a digitally signed pdf?
The optimise option seems to be greyed out on the trial. So how can I test it? If its not possible to do using the trial please tell me if there is another way Last edited by rdsk; 08-20-2023 at 04:50 AM. |
08-20-2023, 04:56 AM | #6 |
want to learn what I want
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08-20-2023, 06:42 AM | #7 |
the rook, bossing Never.
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08-25-2023, 04:35 PM | #8 |
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dear all, I have the same problem, see below
calibre, version 5.44.0 (win32, embedded-python: True) Conversion error: Failed: Convert book 1 of 1 (Intro to Jazz Piano) Spoiler:
Last edited by theducks; 08-25-2023 at 05:24 PM. Reason: Please Spoiler Log files |
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