trying to convert an e textbook

[spediegunz]

hello all I'm getting a conversion failure on an azw4 file I'm trying to convert to an epub. Most other files Ive tried to convert work fine however this one is being stubborn. here is a paste of the clipboard error any help would be appreciated.

Spoiler:

calibre, version 3.10.0 (win32, embedded-python: True)
Conversion error: Failed: Convert book 1 of 1 (Maternal and Child Health Nursing: Care of the Childbearing and Childrearing Family)

Convert book 1 of 1 (Maternal and Child Health Nursing: Care of the Childbearing and Childrearing Family)
Conversion options changed from defaults:
verbose: 2
cover: u'C:\\Users\\User\\AppData\\Local\\Temp\\calibre_0 ezi3e\\33q5ij.jpeg'
read_metadata_from_opf: u'C:\\Users\\User\\AppData\\Local\\Temp\\calibre_0 ezi3e\\ftfulm.opf'
output_profile: 'kindle'
Resolved conversion options
calibre version: 3.10.0
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'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\\User\\AppData\\Local\\Temp\\calibre_0 ezi3e\\33q5ij.jpeg',
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'dont_split_on_page_breaks': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'epub_flatten': False,
'epub_inline_toc': False,
'epub_toc_at_end': False,
'expand_css': False,
'extra_css': None,
'extract_to': None,
'filter_css': u'',
'fix_indents': True,
'flow_size': 260,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x0324C0B0>,
'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_default_epub_cover': False,
'no_inline_navbars': False,
'no_svg_cover': False,
'output_profile': <calibre.customize.profiles.KindleOutput object at 0x0324C410>,
'page_breaks_before': u"//*[name()='h1' or name()='h2']",
'prefer_metadata_cover': False,
'preserve_cover_aspect_ratio': False,
'pretty_print': True,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'C:\\Users\\User\\AppData\\Local\\Temp\\calibre_0 ezi3e\\ftfulm.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,
'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,
'toc_title': None,
'transform_css_rules': '[]',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: AZW4 Input running
on C:\Users\User\AppData\Local\Temp\calibre_0ezi3e\3j _cmj.azw4
Extracting PDF from AZW4 Container...
Converting file to html...
Python function terminated unexpectedly
pdftohtml failed with return code: 1
Syntax Warning: May not be a PDF file (continuing anyway)
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Couldn't read xref table (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 195, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 33, in gui_convert_override
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 26, in gui_convert
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1088, in run
File "site-packages\calibre\customize\conversion.py", line 245, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\azw4_in put.py", line 26, in convert
File "site-packages\calibre\ebooks\azw4\reader.py", line 57, in extract_content
File "site-packages\calibre\ebooks\conversion\plugins\pdf_inp ut.py", line 51, in convert
File "site-packages\calibre\ebooks\pdf\pdftohtml.py", line 92, in pdftohtml
calibre.ebooks.ConversionError: pdftohtml failed with return code: 1
Syntax Warning: May not be a PDF file (continuing anyway)
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Couldn't read xref table

[kovidgoyal]

azw4 is really PDF (inside the azw wrapper) and according to that log, the PDF file is corrupted, which is why it isn;t converting.

[DoctorOhh]

Originally Posted by spediegunz

hello all I'm getting a conversion failure on an azw4 file I'm trying to convert to an epub. Most other files Ive tried to convert work fine however this one is being stubborn. here is a paste of the clipboard error any help would be appreciated.

You might not be able to convert it to epub but if you use the kindle unpack plugin you should be able to change it directly to PDF.