[Conversion Output] KFX Output

[thecfg]

Originally Posted by jhowell

A version 3.29 was made briefly available and then removed by Amazon.
The latest version of KPR is 3.29.1, even though the web page says it is 3.29. This is identical (other than the version number) to 3.28.1 and is compatible with this plugin.

Thanks so much!

[Christopher72]

I'm getting an error trying to convert dutch lanugage e-pubs to kfx. English language e-pubs convert to kfx fine.

Error message:
KFX conversion failed: <p><b>Cannot convert <book-title></b><br><br><b>KFX creation error:</b> Unknown com.amazon.yjconversion feature: reflow-language-2</p>

I replaced the book title with <book-title> in the log below, and replaced my username with 'john'.

Log:

Spoiler:

calibre, version 3.39.1
FOUT: KFX conversion failed: <p><b>Cannot convert <book title></b><br><br><b>KFX creation error:</b> Unknown com.amazon.yjconversion feature: reflow-language-2</p>


Boek 1 van 1 (<book title>) converteren
Conversion options changed from defaults:
cover: u'C:\\Users\\john\\AppData\\Local\\Temp\\calibre_y fpwhb\\nlqmse.jpeg'
read_metadata_from_opf: u'C:\\Users\\john\\AppData\\Local\\Temp\\calibre_y fpwhb\\7lljan.opf'
output_profile: 'tablet'
verbose: 2
Resolved conversion options
calibre version: 3.39.1
{'approximate_pages': False,
'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'cde_type_pdoc': False,
'change_justification': u'original',
'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., '\\s*((chapter|book|section|part)\\s+)|((prolog|pr ologue|epilogue)(\\s+|$))', 'i')) or @class = 'chapter']",
'chapter_mark': u'pagebreak',
'comments': None,
'cover': u'C:\\Users\\john\\AppData\\Local\\Temp\\calibre_y fpwhb\\nlqmse.jpeg',
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'expand_css': False,
'extra_css': None,
'filter_css': u'',
'fix_indents': True,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x00000211E9575CC0>,
'insert_blank_line': False,
'insert_blank_line_size': 0.5,
'insert_metadata': False,
'isbn': None,
'italicize_common_cases': True,
'keep_ligatures': False,
'language': None,
'level1_toc': None,
'level2_toc': None,
'level3_toc': None,
'line_height': 0.0,
'linearize_tables': False,
'margin_bottom': 5.0,
'margin_left': 5.0,
'margin_right': 5.0,
'margin_top': 5.0,
'markup_chapter_headings': True,
'max_toc_links': 50,
'minimum_line_height': 120.0,
'no_chapters_in_toc': False,
'no_inline_navbars': False,
'number_of_pages_field': u'(auto)',
'output_profile': <calibre.customize.profiles.TabletOutput object at 0x00000211E957C780>,
'page_breaks_before': u'/',
'prefer_metadata_cover': False,
'pretty_print': True,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'C:\\Users\\john\\AppData\\Local\\Temp\\calibre_y fpwhb\\7lljan.opf',
'remove_fake_margins': True,
'remove_first_image': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'renumber_headings': True,
'replace_scene_breaks': u'',
'search_replace': '[]',
'series': None,
'series_index': None,
'show_kpr_logs': False,
'smarten_punctuation': False,
'sr1_replace': None,
'sr1_search': None,
'sr2_replace': None,
'sr2_search': None,
'sr3_replace': None,
'sr3_search': None,
'start_reading_at': None,
'subset_embedded_fonts': False,
'tags': None,
'timestamp': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'transform_css_rules': '[]',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: EPUB Input running
on C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\6w xchu.epub
Parsing all content...
Parsing OEBPS/x97894031331021013.xhtml ...
Parsing OEBPS/x97894031331021011.xhtml ...
Parsing OEBPS/x97894031331021012.xhtml ...
Parsing OEBPS/x97894031331021014.xhtml ...
Parsing OEBPS/x97894031331021018.xhtml ...
Parsing OEBPS/x97894031331021019.xhtml ...
Parsing OEBPS/css/template.css ...
Parsing OEBPS/x97894031331021001.xhtml ...
Parsing OEBPS/x97894031331021017.xhtml ...
Parsing OEBPS/x97894031331021015.xhtml ...
Parsing OEBPS/x97894031331021002.xhtml ...
Parsing OEBPS/css/indesign-template.css ...
Parsing OEBPS/x97894031331021020.xhtml ...
Parsing OEBPS/x97894031331021003.xhtml ...
Parsing OEBPS/x97894031331021016.xhtml ...
Parsing OEBPS/x97894031331021006.xhtml ...
Parsing OEBPS/x97894031331021004.xhtml ...
Parsing OEBPS/x97894031331021007.xhtml ...
Parsing OEBPS/x97894031331021008.xhtml ...
Parsing OEBPS/x97894031331021005.xhtml ...
Parsing OEBPS/x97894031331021009.xhtml ...
Parsing OEBPS/x97894031331021010.xhtml ...
Reading TOC from NCX...
Merging user specified metadata...
Detecting structure...
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Removing fake margins...
Found 2 items of level: div_2
Found 1 items of level: div_3
Found 20 items of level: div_1
Found 4328 items of level: p_2
Ignoring level div_3
div_2 left margin stats: Counter()
div_2 right margin stats: Counter()
div_1 left margin stats: Counter({u'0': 11})
div_1 right margin stats: Counter({u'0': 11})
p_2 left margin stats: Counter({u'0': 4297, u'3.1%': 31})
p_2 right margin stats: Counter({u'0': 4303, u'2.4%': 25})
Cleaning up manifest...
Trimming unused files from manifest...
Creating KFX Output...
Software versions: KFX Output 1.26.0, calibre 3.39.1 [64bit], Windows-10-10.0.17134-SP0
KFX Output plugin help is available at https://www.mobileread.com/forums/sh...d.php?t=272407
Found ASIN metadata amazon: B07JN2S3NB
Splitting markup on page breaks and flow limits, if any...
Removing anchor from TOC href: OEBPS/x97894031331021008.xhtml#_idParaDest_9789403133102 _-2
Removing anchor from TOC href: OEBPS/x97894031331021009.xhtml#_idParaDest_9789403133102 _-3
Removing anchor from TOC href: OEBPS/x97894031331021010.xhtml#_idParaDest_9789403133102 _-4
Removing anchor from TOC href: OEBPS/x97894031331021011.xhtml#_idParaDest_9789403133102 _-5
Removing anchor from TOC href: OEBPS/x97894031331021012.xhtml#_idParaDest_9789403133102 _-6
Removing anchor from TOC href: OEBPS/x97894031331021013.xhtml#_idParaDest_9789403133102 _-7
Removing anchor from TOC href: OEBPS/x97894031331021014.xhtml#_idParaDest_9789403133102 _-8
Removing anchor from TOC href: OEBPS/x97894031331021015.xhtml#_idParaDest_9789403133102 _-9
Removing anchor from TOC href: OEBPS/x97894031331021016.xhtml#_idParaDest_9789403133102 _-10
Removing anchor from TOC href: OEBPS/x97894031331021017.xhtml#_idParaDest_9789403133102 _-11
Removing anchor from TOC href: OEBPS/x97894031331021018.xhtml#_idParaDest_9789403133102 _-12
Removing anchor from TOC href: OEBPS/x97894031331021019.xhtml#_idParaDest_9789403133102 _-13
Successfully converted input format to EPUB
Converting C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\bd p6is.epub
Preparing C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\bd p6is.epub for conversion
Converting C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\bd p6is.epub to KPF
Launching Kindle Previewer 3 KFXGenApp (version 3.28.1)

************ Kindle Previewer Conversion Guidance ************
Kindlegen Warning: Absolute value specified for CSS property in content is not supported by Kindle readers. Please use % or refer Kindle Publishing Guidelines about usage of property: 'line-height' in file: C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\stylesheet.css

Kindlegen Warning: CSS style specified in content is not supported by Kindle readers. Removing the CSS property: 'max-width' in file: C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\stylesheet.css

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-Regular.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-Italic.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-Semibold.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-SemiboldItalic.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-SC.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-SCItalic.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-SCSemibold.otf

Kindlegen Warning: CFF/Type1 (Postscript) embedded font included in your source may not render clearly on all Kindle readers. Please refer to Kindle Publishing Guidelines on the recommended usage of embedded fonts. Font File : C:\Users\john\AppData\Local\Temp\mbp_7E3_2_7_10_29 _2E_3D6_648_454_1\OEBPS\wpfonts\ACaslonPro-SCSemiboldItalic.otf

************************************************** ************
Successfully converted EPUB to KPF
Converting C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\bs 4ynk.kpf
Processing container: C:\Users\john\AppData\Local\Temp\calibre_yfpwhb\bs 4ynk.kpf
Removed 4 KDF SQLite file fingerprint(s)
kfxgen version: KPR-3.28.1/kfxlib-20181220
ERROR: Unknown com.amazon.yjconversion feature: reflow-language-2
Features: CanonicalFormat-1, kfxgen.textBlock-1, max_id-761, reflow-section-size-5, reflow-style-2
Metadata: ASIN=B07JN2S3NB, author="Giordano, Paolo", book_id=fwHhIiHbRnGa9ItWzNNR9w1, cde_content_type=EBOK, content_id=B07JN2S3NB, cover_image=850x1276, creator_version=3.28.1, file_creator=KPR, is_sample=False, language=nl, override_kindle_font=True, publisher="De Bezige Bij", reading_orders=1, selection=enabled, title="<book title>"
Python function terminated unexpectedly
{"level": "error", "det_msg": "", "msg": "<b>Cannot convert <book title></b><br><br><b>KFX creation error:</b> Unknown com.amazon.yjconversion feature: reflow-language-2", "title": "KFX conversion failed"} (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 101, in main
File "site.py", line 78, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 199, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 42, in gui_convert_override
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 27, in gui_convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1270, in run
File "calibre_plugins.kfx_output.__init__", line 207, in convert
File "calibre_plugins.kfx_output.__init__", line 298, in convert_using_previewer
File "calibre_plugins.kfx_output.__init__", line 325, in convert_from_kpf_or_zip
File "calibre_plugins.kfx_output.__init__", line 336, in report_failure
calibre.ebooks.conversion.ConversionUserFeedBack: {"level": "error", "det_msg": "", "msg": "<b>Cannot convert <book title></b><br><br><b>KFX creation error:</b> Unknown com.amazon.yjconversion feature: reflow-language-2", "title": "KFX conversion failed"}

[jhowell]

Originally Posted by Christopher72

I'm getting an error trying to convert dutch lanugage e-pubs to kfx.

This will be fixed in the next version of the plugin. I plan to release it within a day or two.

[jhowell]

Version 1.27.0 - 08 Feb 2019

Support Dutch language books. (Fixes "Unknown com.amazon.yjconversion feature: reflow-language-2")

Detect Previewer versions up to 3.29.1 and remove support for Previewer versions older than 3.27. (Newer Previewer versions produce better results.)

Allow the ".last" CLI function to work with Previewer version 3.29 and later.

[pwlyons]

I've tried removing and reinstalling Kindle Previewer 3.29.1 and your 1.27 plug in. Running Calibre 3.39.1, but trying to convert anything to kfx including the Frankenstein test file gives the following error:

calibre, version 3.39.1
ERROR: KFX conversion failed: <p><b>Cannot convert Frankenstein</b><br><br><b>Conversion error:</b> Kindle Previewer error: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Users\pwlyons\AppData\Local\Amazon\Kindle Previewer 3\lib\fc\lib\MessagingJNI.dll: The specified procedure could not be found</p>

I should add this started with Kindle Previewer versions greater than 3.24 which works fine with plug-in 1.26. Now that plugin 1.27 doesn't support Previewer 3.24, this is an issue.

[jhowell]

Originally Posted by pwlyons

Kindle Previewer error: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Users\pwlyons\AppData\Local\Amazon\Kindle Previewer 3\lib\fc\lib\MessagingJNI.dll: The specified procedure could not be found<

It appears that recent versions of the Previewer are attempting to make use of an OS function that is missing from your system. I have no idea on how to solve that. I am curious to know what version of Windows you are running.

I have attached the previous version (1.26.0) of the the KFX Output plugin to this post. You can install that manually in calibre as a workaround. (See "How do I install a plugin manually?" in the Introduction to plugins for instructions.)

[pwlyons]

[QUOTE=jhowell;3808306]It appears that recent versions of the Previewer are attempting to make use of an OS function that is missing from your system. I have no idea on how to solve that. I am curious to know what version of Windows you are running.

I am running Vista Ultimate 32 bit.

[jhowell]

Originally Posted by pwlyons

I am running Vista Ultimate 32 bit.

I am surprised that it ever worked. Amazon claims that Windows 7 is the minimum requirement to run the Kindle Previewer.

[pwlyons]

Originally Posted by jhowell

I am surprised that it ever worked. Amazon claims that Windows 7 is the minimum requirement to run the Kindle Previewer.

It has worked great until recently. I've rolled back to Kindle Previewer 3.24. Also discovered Kindle for PC newer versions don't work for Vista either, but I was able to find that I had Kindle for PC v1.17 in my downloads. This combined with v1.26 of your plug-in and I'm back in business. So that is the known working combo for Vista Ultimate 32bit.

I started working on a new install on a laptop running Windows 10 to replace the Vista box since the compatibility will only get worse now. I know I need to stay away from Kindle for PC 1.25 there.

Thanks for your plug-in and responsiveness. It is most appreciated.

[raghiid]

Why is the text larger in kfx formats? Comparing the same text size between azw3 and kfx, text is noticeably larger in kfx

[jhowell]

Originally Posted by raghiid

Why is the text larger in kfx formats? Comparing the same text size between azw3 and kfx, text is noticeably larger in kfx

I am not seeing a problem with font sizes. As a test I converted this edition of Frankenstein to both KFX and AZW3 and loaded both to my Oasis 2 running the latest firmware. I displayed the first page of each book using Bookerly size 6 bold 1. Although the page layout was slightly different, as expected since KFX enables Enhanced Typesetting, the actual font sizes displayed were identical. (See attached images.)

One thing that might cause a differences is if you use FONT_RAMP on your Kindle. That will affect the font size of books in AZW3 format only.

If you want me to research this further you will need to supply a non-copyrighted sample that demonstrates the problem.

[raghiid]

Originally Posted by jhowell

I am not seeing a problem with font sizes. As a test I converted this edition of Frankenstein to both KFX and AZW3 and loaded both to my Oasis 2 running the latest firmware. I displayed the first page of each book using Bookerly size 6 bold 1. Although the page layout was slightly different, as expected since KFX enables Enhanced Typesetting, the actual font sizes displayed were identical. (See attached images.)

One thing that might cause a differences is if you use FONT_RAMP on your Kindle. That will affect the font size of books in AZW3 format only.

If you want me to research this further you will need to supply a non-copyrighted sample that demonstrates the problem.

Seems I am only seeing this behavior in a specific azw3 file... sorry for the trouble.
And thank you, really appreciate your work!

[jhowell]

Version 1.28.0 - 02 Mar 2019

Add metadata (asset_id) required to allow Vocabulary Builder to work with sideloaded KFX books.

Preserve publication date metadata during conversion.

Detect Previewer versions up to 3.29.2.

[jairsian]

I have managed to convert the .epub to .kfx in calibre. However I can't seem to get it onto my kindle. I have tried calibre send to device and manually adding the .kfx file to the kindle documents folder but although it appears to be there in calibre, it does not show up on my kindl.e

[jhowell]

Originally Posted by jairsian

I have managed to convert the .epub to .kfx in calibre. However I can't seem to get it onto my kindle. I have tried calibre send to device and manually adding the .kfx file to the kindle documents folder but although it appears to be there in calibre, it does not show up on my kindl.e

If you really have a "Kindle 5th Gen" as indicated in your MobileRead profile then you are out of luck. That model does not support KFX format.

A 6th generation or later Kindle is required. The earliest firmware release with any KFX support was version 5.6.5. However because KFX has been extended over time using the latest version (currently 5.10.3) is strongly recommended for reading sideloaded KFX books.