e3dfd90933
Outil d'imposition PDF desktop (PyQt6) remplacant Quite Imposing Plus. 9 fonctions : livret, n-up, step & repeat, imposition manuelle, jointure pages, pages blanches, numerotation, masquage, fonds perdus. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
59 lines
2.2 KiB
Python
59 lines
2.2 KiB
Python
"""Moteur Insertion de pages blanches."""
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from pypdf import PdfReader, PdfWriter
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from .pdf_utils import get_page_size
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def insert_blank_pages(input_path, output_path, mode="after", position=None,
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every_n=None, target_multiple=None, page_size=None):
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"""Inserer des pages blanches.
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mode: "before", "after", "every_n", "pad_to_multiple"
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position: numero de page (1-based) pour before/after
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every_n: inserer apres chaque N pages
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target_multiple: arrondir au multiple de N
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page_size: (w, h) en points ou None pour meme taille que page adjacente
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"""
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reader = PdfReader(input_path)
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writer = PdfWriter()
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if mode == "pad_to_multiple" and target_multiple:
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for page in reader.pages:
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writer.add_page(page)
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num = len(reader.pages)
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remainder = num % target_multiple
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if remainder != 0:
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to_add = target_multiple - remainder
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last_w, last_h = get_page_size(reader.pages[-1])
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w, h = page_size if page_size else (last_w, last_h)
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for _ in range(to_add):
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writer.add_blank_page(w, h)
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elif mode == "every_n" and every_n:
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for i, page in enumerate(reader.pages):
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writer.add_page(page)
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if (i + 1) % every_n == 0 and i + 1 < len(reader.pages):
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w, h = get_page_size(page)
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bw, bh = page_size if page_size else (w, h)
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writer.add_blank_page(bw, bh)
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elif mode in ("before", "after") and position:
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idx = position - 1 # 0-based
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for i, page in enumerate(reader.pages):
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if mode == "before" and i == idx:
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w, h = get_page_size(page)
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bw, bh = page_size if page_size else (w, h)
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writer.add_blank_page(bw, bh)
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writer.add_page(page)
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if mode == "after" and i == idx:
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w, h = get_page_size(page)
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bw, bh = page_size if page_size else (w, h)
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writer.add_blank_page(bw, bh)
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else:
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for page in reader.pages:
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writer.add_page(page)
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with open(output_path, "wb") as f:
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writer.write(f)
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return output_path
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