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>
61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
"""Moteur Joindre deux pages."""
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from pypdf import PdfReader, PdfWriter, PageObject, Transformation
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from .pdf_utils import get_page_size
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def join_pages(input_path, output_path, direction="horizontal"):
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"""Joindre les pages par paires.
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direction: "horizontal" (cote a cote) ou "vertical" (dessus/dessous)
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"""
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reader = PdfReader(input_path)
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pages = reader.pages
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writer = PdfWriter()
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for i in range(0, len(pages), 2):
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page1 = pages[i]
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page2 = pages[i + 1] if i + 1 < len(pages) else None
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w1, h1 = get_page_size(page1)
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if page2:
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w2, h2 = get_page_size(page2)
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else:
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w2, h2 = w1, h1
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if direction == "horizontal":
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new_w = w1 + w2
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new_h = max(h1, h2)
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sheet = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay1 = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay1.merge_page(page1)
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sheet.merge_page(overlay1)
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if page2:
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overlay2 = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay2.merge_page(page2)
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overlay2.add_transformation(Transformation().translate(w1, 0))
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sheet.merge_page(overlay2)
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else: # vertical
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new_w = max(w1, w2)
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new_h = h1 + h2
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sheet = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay1 = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay1.merge_page(page1)
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overlay1.add_transformation(Transformation().translate(0, h2))
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sheet.merge_page(overlay1)
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if page2:
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overlay2 = PageObject.create_blank_page(width=new_w, height=new_h)
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overlay2.merge_page(page2)
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sheet.merge_page(overlay2)
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writer.add_page(sheet)
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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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