def convert(opf_path, opts, metadata=None, output_path=None, log=default_log, cover_data=None, report_progress=lambda x, y: None):
container = Container(opf_path, log)
report_progress(0.05, _('Parsed all content for markup transformation'))
has_maths = add_maths_script(container)
fix_fullscreen_images(container)
name_anchor_map = make_anchors_unique(container, log)
margin_files = tuple(create_margin_files(container))
toc = get_toc(container, verify_destinations=False)
has_toc = toc and len(toc)
links_page_uuid = add_all_links(container, margin_files)
container.commit()
report_progress(0.1, _('Completed markup transformation'))
manager = RenderManager(opts, log, container.root)
page_layout = get_page_layout(opts)
pdf_doc = None
anchor_locations = {}
jobs = []
for margin_file in margin_files:
jobs.append(job_for_name(container, margin_file.name, margin_file.margins, page_layout))
results = manager.convert_html_files(jobs, settle_time=1, has_maths=has_maths)
num_pages = 0
page_margins_map = []
for margin_file in margin_files:
name = margin_file.name
data = results[name]
if not isinstance(data, bytes):
raise SystemExit(data)
doc = data_as_pdf_doc(data)
anchor_locations.update(get_anchor_locations(doc, num_pages + 1, links_page_uuid))
doc_pages = doc.page_count()
page_margins_map.extend(repeat(resolve_margins(margin_file.margins, page_layout), doc_pages))
num_pages += doc_pages
if pdf_doc is None:
pdf_doc = doc
else:
pdf_doc.append(doc)
page_number_display_map = get_page_number_display_map(manager, opts, num_pages, log)
if has_toc:
annotate_toc(toc, anchor_locations, name_anchor_map, log)
if opts.pdf_add_toc:
tocname = create_skeleton(container)
root = container.parsed(tocname)
add_pagenum_toc(root, toc, opts, page_number_display_map)
container.commit()
jobs = [job_for_name(container, tocname, None, page_layout)]
results = manager.convert_html_files(jobs, settle_time=1)
tocdoc = data_as_pdf_doc(results[tocname])
page_margins_map.extend(repeat(resolve_margins(None, page_layout), tocdoc.page_count()))
pdf_doc.append(tocdoc)
report_progress(0.7, _('Rendered all HTML as PDF'))
fix_links(pdf_doc, anchor_locations, name_anchor_map, opts.pdf_mark_links, log)
if toc and len(toc):
add_toc(PDFOutlineRoot(pdf_doc), toc)
report_progress(0.75, _('Added links to PDF content'))
pdf_metadata = PDFMetadata(metadata)
add_header_footer(
manager, opts, pdf_doc, container,
page_number_display_map, page_layout, page_margins_map,
pdf_metadata, report_progress, toc if has_toc else None)
merge_fonts(pdf_doc)
num_removed = dedup_type3_fonts(pdf_doc)
if num_removed:
log('Removed', num_removed, 'duplicated Type3 glyphs')
num_removed = remove_unused_fonts(pdf_doc)
if num_removed:
log('Removed', num_removed, 'unused fonts')
num_removed = pdf_doc.dedup_images()
if num_removed:
log('Removed', num_removed, 'duplicate images')
if cover_data:
add_cover(pdf_doc, cover_data, page_layout, opts)
if metadata is not None:
update_metadata(pdf_doc, pdf_metadata)
report_progress(1, _('Updated metadata in PDF'))
if opts.uncompressed_pdf:
pdf_doc.uncompress()
pdf_data = pdf_doc.write()
if output_path is None:
return pdf_data
with open(output_path, 'wb') as f:
f.write(pdf_data)
def convert(opf_path,
opts,
metadata=None,
output_path=None,
log=default_log,
cover_data=None,
report_progress=lambda x, y: None):
container = Container(opf_path, log)
fix_markup(container)
report_progress(0.05, _('Parsed all content for markup transformation'))
if opts.pdf_hyphenate:
from calibre.ebooks.oeb.polish.hyphenation import add_soft_hyphens
add_soft_hyphens(container)
has_maths = add_maths_script(container)
fix_fullscreen_images(container)
name_anchor_map = make_anchors_unique(container, log)
margin_files = tuple(create_margin_files(container))
toc = get_toc(container, verify_destinations=False)
has_toc = toc and len(toc)
links_page_uuid = add_all_links(container, margin_files)
container.commit()
report_progress(0.1, _('Completed markup transformation'))
manager = RenderManager(opts, log, container.root)
page_layout = get_page_layout(opts)
pdf_doc = None
anchor_locations = {}
jobs = []
for margin_file in margin_files:
jobs.append(
job_for_name(container, margin_file.name, margin_file.margins,
page_layout))
results = manager.convert_html_files(jobs,
settle_time=1,
has_maths=has_maths)
num_pages = 0
page_margins_map = []
for margin_file in margin_files:
name = margin_file.name
data = results[name]
if not isinstance(data, bytes):
raise SystemExit(data)
doc = data_as_pdf_doc(data)
anchor_locations.update(
get_anchor_locations(name, doc, num_pages + 1, links_page_uuid,
log))
doc_pages = doc.page_count()
page_margins_map.extend(
repeat(resolve_margins(margin_file.margins, page_layout),
doc_pages))
num_pages += doc_pages
if pdf_doc is None:
pdf_doc = doc
else:
pdf_doc.append(doc)
page_number_display_map = get_page_number_display_map(
manager, opts, num_pages, log)
if has_toc:
annotate_toc(toc, anchor_locations, name_anchor_map, log)
if opts.pdf_add_toc:
tocname = create_skeleton(container)
root = container.parsed(tocname)
add_pagenum_toc(root, toc, opts, page_number_display_map)
container.commit()
jobs = [job_for_name(container, tocname, None, page_layout)]
results = manager.convert_html_files(jobs, settle_time=1)
tocdoc = data_as_pdf_doc(results[tocname])
page_margins_map.extend(
repeat(resolve_margins(None, page_layout),
tocdoc.page_count()))
pdf_doc.append(tocdoc)
report_progress(0.7, _('Rendered all HTML as PDF'))
fix_links(pdf_doc, anchor_locations, name_anchor_map, opts.pdf_mark_links,
log)
if toc and len(toc):
add_toc(PDFOutlineRoot(pdf_doc), toc)
report_progress(0.75, _('Added links to PDF content'))
pdf_metadata = PDFMetadata(metadata)
add_header_footer(manager, opts, pdf_doc, container,
page_number_display_map, page_layout, page_margins_map,
pdf_metadata, report_progress, toc if has_toc else None)
merge_fonts(pdf_doc, log)
num_removed = dedup_type3_fonts(pdf_doc)
if num_removed:
log('Removed', num_removed, 'duplicated Type3 glyphs')
num_removed = remove_unused_fonts(pdf_doc)
if num_removed:
log('Removed', num_removed, 'unused fonts')
# Needed because of https://bugreports.qt.io/browse/QTBUG-88976
subset_fonts(pdf_doc, log)
num_removed = pdf_doc.dedup_images()
if num_removed:
log('Removed', num_removed, 'duplicate images')
if opts.pdf_odd_even_offset:
for i in range(1, pdf_doc.page_count()):
margins = page_margins_map[i]
mult = -1 if i % 2 else 1
val = opts.pdf_odd_even_offset
if abs(val) < min(margins.left, margins.right):
box = list(pdf_doc.get_page_box("CropBox", i))
box[0] += val * mult
pdf_doc.set_page_box("CropBox", i, *box)
if cover_data:
add_cover(pdf_doc, cover_data, page_layout, opts)
if metadata is not None:
update_metadata(pdf_doc, pdf_metadata)
report_progress(1, _('Updated metadata in PDF'))
if opts.uncompressed_pdf:
pdf_doc.uncompress()
pdf_data = pdf_doc.write()
if output_path is None:
return pdf_data
with open(output_path, 'wb') as f:
f.write(pdf_data)