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Add support for viewing and converting KEPUB files

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Kovid Goyal 2025-02-24 09:50:07 +05:30
parent 91731ab5b8
commit fce03aaa38
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2 changed files with 13 additions and 3 deletions
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4
manual/faq.rst
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@ -18,7 +18,7 @@ What formats does calibre support conversion to/from?
calibre supports the conversion of many input formats to many output formats. calibre supports the conversion of many input formats to many output formats.
It can convert every input format in the following list, to every output format. It can convert every input format in the following list, to every output format.
*Input Formats:* AZW, AZW3, AZW4, CBZ, CBR, CB7, CBC, CHM, DJVU, DOCX, EPUB, FB2, FBZ, HTML, HTMLZ, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, SNB, TCR, TXT, TXTZ *Input Formats:* AZW, AZW3, AZW4, CBZ, CBR, CB7, CBC, CHM, DJVU, DOCX, EPUB, FB2, FBZ, HTML, HTMLZ, KEPUB, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, SNB, TCR, TXT, TXTZ
*Output Formats:* AZW3, EPUB, DOCX, FB2, HTMLZ, OEB, LIT, LRF, MOBI, PDB, PMLZ, RB, PDF, RTF, SNB, TCR, TXT, TXTZ, ZIP *Output Formats:* AZW3, EPUB, DOCX, FB2, HTMLZ, OEB, LIT, LRF, MOBI, PDB, PMLZ, RB, PDF, RTF, SNB, TCR, TXT, TXTZ, ZIP
@ -34,7 +34,7 @@ It can convert every input format in the following list, to every output format.
What are the best source formats to convert? What are the best source formats to convert?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In order of decreasing preference: LIT, MOBI, AZW, EPUB, AZW3, FB2, FBZ, DOCX, HTML, PRC, ODT, RTF, PDB, TXT, PDF In order of decreasing preference: LIT, MOBI, AZW, EPUB, KEPUB, AZW3, FB2, FBZ, DOCX, HTML, PRC, ODT, RTF, PDB, TXT, PDF
I converted a PDF file, but the result has various problems? I converted a PDF file, but the result has various problems?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

12
src/calibre/ebooks/conversion/plugins/epub_input.py
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@ -33,7 +33,7 @@ class EPUBInput(InputFormatPlugin):
name = 'EPUB Input' name = 'EPUB Input'
author = 'Kovid Goyal' author = 'Kovid Goyal'
description = _('Convert EPUB files (.epub) to HTML') description = _('Convert EPUB files (.epub) to HTML')
file_types = {'epub'} file_types = {'epub', 'kepub'}
output_encoding = None output_encoding = None
commit_name = 'epub_input' commit_name = 'epub_input'
@ -261,6 +261,7 @@ class EPUBInput(InputFormatPlugin):
from calibre.ebooks import DRMError from calibre.ebooks import DRMError
from calibre.ebooks.metadata.opf2 import OPF from calibre.ebooks.metadata.opf2 import OPF
from calibre.utils.zipfile import ZipFile from calibre.utils.zipfile import ZipFile
is_kepub = file_ext.lower() == 'kepub'
try: try:
zf = ZipFile(stream) zf = ZipFile(stream)
zf.extractall(os.getcwd()) zf.extractall(os.getcwd())
@ -283,6 +284,15 @@ class EPUBInput(InputFormatPlugin):
if opf is None: if opf is None:
raise ValueError(f'{path} is not a valid EPUB file (could not find opf)') raise ValueError(f'{path} is not a valid EPUB file (could not find opf)')
if is_kepub and not self.for_viewer:
log('Removing Kobo markup...')
from calibre.ebooks.oeb.polish.container import Container
from calibre.ebooks.oeb.polish.kepubify import unkepubify_container
container = Container(os.getcwd(), opf, log)
unkepubify_container(container)
container.commit()
del container
opf = os.path.relpath(opf, os.getcwd()) opf = os.path.relpath(opf, os.getcwd())
parts = os.path.split(opf) parts = os.path.split(opf)
opf = OPF(opf, os.path.dirname(os.path.abspath(opf))) opf = OPF(opf, os.path.dirname(os.path.abspath(opf)))