Figure out

librarian_functions.py

@@ -0,0 +1,28 @@
+# pdf_render.py
+import io
+
+try:
+    import fitz  # PyMuPDF
+    _HAS_PYMUPDF = True
+except Exception:
+    _HAS_PYMUPDF = False
+    from pdf2image import convert_from_path
+
+def pdf_page_to_image_bytes(path: str, page_index: int = 0, zoom: float = 2.0, fmt: str = "PNG") -> bytes:
+    """
+    Zwraca bytes obrazka z jednej strony PDF:
+      - PyMuPDF (szybki) jeśli dostępny,
+      - inaczej pdf2image + poppler (wymaga 'pdftoppm').
+    page_index: 0-based
+    """
+    if _HAS_PYMUPDF:
+        doc = fitz.open(path)
+        page = doc.load_page(page_index)
+        mat = fitz.Matrix(zoom, zoom)
+        pix = page.get_pixmap(matrix=mat, alpha=False)
+        return pix.tobytes(fmt.lower())
+    # fallback
+    images = convert_from_path(path, first_page=page_index+1, last_page=page_index+1, fmt=fmt)
+    bio = io.BytesIO()
+    images[0].save(bio, fmt)
+    return bio.getvalue()