V3.6.0 — Demonter pages, masquage visuel, regles, bleeds, corrections
- Demonter les pages : couper en 2 sans reordonner (sous Delivretiser) - Masquage visuel : selection au curseur sur l'apercu + plage de pages - Regles horizontale/verticale en mm (menu Affichage) - Fonds perdus : filigrane rouge pour visualiser les bleeds - Reperes de coupe : marques a l'exterieur (page agrandie), 2 traits/coin - Numerotation : couleur configurable via selecteur - Decalage : Trim & Shift renomme en francais, creep -> chasse - Recadrages multiples cumulatifs (plages differentes) - Fix spinbox format personnalise (fleches aleatoires) - Fix combo livret : option Automatique preservee Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Jules
@@ -1,6 +1,6 @@
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"""Moteur Reperes de coupe autonomes."""
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from pypdf import PdfReader, PdfWriter
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from pypdf import PdfReader, PdfWriter, PageObject, Transformation
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from reportlab.pdfgen import canvas
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from .pdf_utils import get_page_size
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import io
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@@ -8,11 +8,18 @@ import io
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def add_crop_marks(input_path, output_path, mark_length=14.17, mark_offset=7.09,
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line_width=0.25, color=(0, 0, 0), center_marks=False,
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apply_to="all", current_page=0):
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"""Ajouter des reperes de coupe sur les pages."""
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apply_to="all", current_page=0, **_kwargs):
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"""Ajouter des reperes de coupe sur les pages.
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Les marques sont placees a l'exterieur de la zone d'impression.
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Chaque coin a 2 traits (1 horizontal + 1 vertical) formant un L.
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La page est agrandie pour contenir les marques.
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"""
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reader = PdfReader(input_path)
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writer = PdfWriter()
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margin = mark_offset + mark_length
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for i, page in enumerate(reader.pages):
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page_num = i + 1
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should_apply = False
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@@ -27,46 +34,62 @@ def add_crop_marks(input_path, output_path, mark_length=14.17, mark_offset=7.09,
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if should_apply:
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w, h = get_page_size(page)
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# Canvas agrandi pour inclure les marques
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cw = w + 2 * margin
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ch = h + 2 * margin
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packet = io.BytesIO()
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c = canvas.Canvas(packet, pagesize=(w, h))
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c = canvas.Canvas(packet, pagesize=(cw, ch))
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c.setLineWidth(line_width)
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c.setStrokeColorRGB(*color)
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# 4 coins
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corners = [(0, 0), (w, 0), (0, h), (w, h)]
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for cx, cy in corners:
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# Traits horizontaux
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if cx == 0:
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c.line(cx - mark_offset - mark_length, cy, cx - mark_offset, cy)
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else:
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c.line(cx + mark_offset, cy, cx + mark_offset + mark_length, cy)
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# Traits verticaux
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if cy == 0:
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c.line(cx, cy - mark_offset - mark_length, cx, cy - mark_offset)
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else:
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c.line(cx, cy + mark_offset, cx, cy + mark_offset + mark_length)
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# Les coordonnees de la zone d'impression dans le canvas agrandi
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ox, oy = margin, margin # origine de la page originale
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# 4 coins — 2 traits par coin (L exterieur)
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# Bas-gauche
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c.line(ox - mark_offset - mark_length, oy, ox - mark_offset, oy)
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c.line(ox, oy - mark_offset - mark_length, ox, oy - mark_offset)
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# Bas-droite
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c.line(ox + w + mark_offset, oy, ox + w + mark_offset + mark_length, oy)
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c.line(ox + w, oy - mark_offset - mark_length, ox + w, oy - mark_offset)
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# Haut-gauche
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c.line(ox - mark_offset - mark_length, oy + h, ox - mark_offset, oy + h)
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c.line(ox, oy + h + mark_offset, ox, oy + h + mark_offset + mark_length)
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# Haut-droite
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c.line(ox + w + mark_offset, oy + h, ox + w + mark_offset + mark_length, oy + h)
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c.line(ox + w, oy + h + mark_offset, ox + w, oy + h + mark_offset + mark_length)
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# Reperes de centrage
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if center_marks:
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mid_x = w / 2
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mid_y = h / 2
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mid_x = ox + w / 2
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mid_y = oy + h / 2
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ml = mark_length * 0.7
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# Haut
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c.line(mid_x, h + mark_offset, mid_x, h + mark_offset + ml)
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c.line(mid_x, oy + h + mark_offset, mid_x, oy + h + mark_offset + ml)
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# Bas
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c.line(mid_x, -mark_offset, mid_x, -mark_offset - ml)
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c.line(mid_x, oy - mark_offset, mid_x, oy - mark_offset - ml)
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# Gauche
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c.line(-mark_offset, mid_y, -mark_offset - ml, mid_y)
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c.line(ox - mark_offset, mid_y, ox - mark_offset - ml, mid_y)
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# Droite
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c.line(w + mark_offset, mid_y, w + mark_offset + ml, mid_y)
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c.line(ox + w + mark_offset, mid_y, ox + w + mark_offset + ml, mid_y)
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c.showPage()
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c.save()
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packet.seek(0)
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overlay = PdfReader(packet)
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page.merge_page(overlay.pages[0])
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overlay_reader = PdfReader(packet)
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overlay_page = overlay_reader.pages[0]
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writer.add_page(page)
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# Creer une nouvelle page agrandie
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new_page = PageObject.create_blank_page(width=cw, height=ch)
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# Placer la page originale au centre (decalee de margin)
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page.add_transformation(Transformation().translate(margin, margin))
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new_page.merge_page(page)
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# Ajouter les marques de coupe par-dessus
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new_page.merge_page(overlay_page)
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writer.add_page(new_page)
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else:
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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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