initial commit

cover_to_pdf.py

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+#!/usr/bin/env python3
+
+import sys
+from pathlib import Path
+from PIL import Image
+from reportlab.lib.pagesizes import A4
+from reportlab.pdfgen import canvas
+from reportlab.lib.units import mm
+
+def image_to_pdf(image_path, output_pdf=None):
+    image_path = Path(image_path)
+
+    if not image_path.exists():
+        raise FileNotFoundError(f"File not found: {image_path}")
+
+    if output_pdf is None:
+        output_pdf = image_path.with_suffix(".pdf")
+
+    img = Image.open(image_path)
+    img_width, img_height = img.size
+
+    # A4 page size (points)
+    page_width, page_height = A4
+
+    # Convert pixels to points assuming 300 DPI
+    dpi = img.info.get("dpi", (300, 300))[0]
+    img_width_pt = img_width * 72 / dpi
+    img_height_pt = img_height * 72 / dpi
+
+    # Scale to fit page while preserving aspect ratio
+    scale = min(page_width / img_width_pt, page_height / img_height_pt)
+    draw_width = img_width_pt * scale
+    draw_height = img_height_pt * scale
+
+    x = (page_width - draw_width) / 2
+    y = (page_height - draw_height) / 2
+
+    c = canvas.Canvas(str(output_pdf), pagesize=A4)
+    c.drawImage(str(image_path), x, y, draw_width, draw_height)
+    c.showPage()
+    c.save()
+
+    print(f"✔ PDF created: {output_pdf}")
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: cover_to_pdf.py <image.jpg/png> [output.pdf]")
+        sys.exit(1)
+
+    image = sys.argv[1]
+    output = sys.argv[2] if len(sys.argv) > 2 else None
+    image_to_pdf(image, output)