81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import fitz # PyMuPDF
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import os
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from pathlib import Path
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# ===============================
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# 📁 FOLDER SETTINGS
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# ===============================
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input_folder = Path(r"u:\Dropbox\Ordinace\Dokumentace_ke_zpracování\A4 expand")
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output_suffix = "_A4scaled.pdf"
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# A4 portrait size in points
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A4_WIDTH, A4_HEIGHT = 595, 842
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# ===============================
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# ⚙️ FUNCTION
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# ===============================
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def normalize_to_A4_portrait(pdf_path: Path):
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output_path = pdf_path.with_name(pdf_path.stem + output_suffix)
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# skip if already exists
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if output_path.exists():
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try:
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output_path.unlink()
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print(f"🧹 Deleted old: {output_path.name}")
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except PermissionError:
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print(f"⚠️ Skipped {output_path.name} (open elsewhere)")
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return
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src = fitz.open(pdf_path)
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dst = fitz.open()
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changed = False
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for i, page in enumerate(src, 1):
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rect = page.rect
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w, h = rect.width, rect.height
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# check if already close to A4 size (within 2%)
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if abs(w - A4_WIDTH) < 12 and abs(h - A4_HEIGHT) < 17:
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# copy directly without change
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dst.insert_pdf(src, from_page=i - 1, to_page=i - 1)
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print(f"✅ {pdf_path.name} page {i}: already A4, copied as-is.")
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continue
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changed = True
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scale = min(A4_WIDTH / w, A4_HEIGHT / h)
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new_w, new_h = w * scale, h * scale
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# horizontal center, vertical TOP
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x_off = (A4_WIDTH - new_w) / 2
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y_off = 0 # 👈 place at top edge
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new_page = dst.new_page(width=A4_WIDTH, height=A4_HEIGHT)
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new_page.show_pdf_page(
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fitz.Rect(x_off, y_off, x_off + new_w, y_off + new_h),
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src,
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page.number
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)
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print(f"📄 {pdf_path.name} page {i}: {w:.0f}×{h:.0f} → {new_w:.0f}×{new_h:.0f} (top-aligned)")
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dst.save(output_path)
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src.close()
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dst.close()
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if changed:
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print(f"✅ Saved normalized A4 PDF: {output_path.name}\n")
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else:
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print(f"➡️ No change needed: {pdf_path.name}\n")
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# ===============================
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# 🚀 MAIN LOOP
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# ===============================
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for file in input_folder.glob("*.pdf"):
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normalize_to_A4_portrait(file)
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print("\n🎉 All PDFs processed — scaled to A4 portrait, top-aligned.")
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