diff --git a/lib/dxf2lib b/lib/dxf2lib
new file mode 100644
index 0000000..9f61079
--- /dev/null
+++ b/lib/dxf2lib
@@ -0,0 +1,75 @@
+import os
+import ezdxf
+from ezdxf.math import Vec2
+
+# Hilfsfunktion für Umgebungsvariablen mit Fallback
+
+def check_environment_var(env_str: str, fallback: str) -> str:
+    out_path = os.environ.get(env_str)
+    if out_path:
+        return out_path
+    print(f"[WARN] Umgebungsvariable {env_str} ist nicht gesetzt oder leer. Verwende '{fallback}'.")
+    return fallback
+
+# Verzeichnisse/Dateien über Umgebungsvariablen oder Fallback
+INPUT_DIR = os.path.join(check_environment_var("PROJECT_WORK", "."), "converted_dxfs")
+OUTPUT_FILE = os.path.join(check_environment_var("PROJECT_WORK", "."), "block_library.dxf")
+
+doc = ezdxf.new()
+msp = doc.modelspace()
+
+def get_bbox(entities):
+    min_x, min_y = float('inf'), float('inf')
+    max_x, max_y = float('-inf'), float('-inf')
+    for e in entities:
+        try:
+            box = e.bbox()
+            if box:
+                (x1, y1), (x2, y2) = box.extmin, box.extmax
+                min_x, min_y = min(min_x, x1), min(min_y, y1)
+                max_x, max_y = max(max_x, x2), max(max_y, y2)
+        except Exception:
+            continue
+    if min_x == float('inf'):
+        return None
+    return Vec2((min_x + max_x) / 2, (min_y + max_y) / 2)
+
+x_offset = 0
+
+for filename in os.listdir(INPUT_DIR):
+    if not filename.lower().endswith(".dxf"):
+        continue
+
+    filepath = os.path.join(INPUT_DIR, filename)
+    name = os.path.splitext(filename)[0]
+
+    try:
+        src_doc = ezdxf.readfile(filepath)
+        src_msp = src_doc.modelspace()
+        entities = list(src_msp)
+    except Exception as e:
+        print(f"Fehler beim Lesen von {filename}: {e}")
+        continue
+
+    center = get_bbox(entities)
+    if center is None:
+        print(f"Keine gültige Geometrie in {filename}")
+        continue
+
+    if name in doc.blocks:
+        doc.blocks.delete_block(name)
+
+    blk = doc.blocks.new(name=name, base_point=center)
+
+    for e in entities:
+        try:
+            blk.add_entity(e.copy())
+        except Exception as err:
+            print(f"Fehler in {filename}: {err}")
+
+    # Optional Vorschau
+    msp.add_blockref(name, insert=(x_offset, 0))
+    x_offset += 200  # Abstand zwischen Blöcken
+
+print(f"Bibliotheks-DXF gespeichert: {OUTPUT_FILE}")
+doc.saveas(OUTPUT_FILE)
diff --git a/lib/svg2dxf.py b/lib/svg2dxf.py
new file mode 100644
index 0000000..a942832
--- /dev/null
+++ b/lib/svg2dxf.py
@@ -0,0 +1,33 @@
+import os
+import subprocess
+import sys
+
+# Hilfsfunktion wie in plant2dxf.py
+
+def check_environment_var(env_str: str, fallback: str) -> str:
+    out_path = os.environ.get(env_str)
+    if out_path:
+        return out_path
+    print(f"[WARN] Umgebungsvariable {env_str} ist nicht gesetzt oder leer. Verwende '{fallback}'.")
+    return fallback
+
+# Verzeichnisse über Umgebungsvariablen oder Fallback
+INPUT_DIR = os.path.join(check_environment_var("PROJECT_WORK", "."), "input_svg")
+OUTPUT_DIR = os.path.join(check_environment_var("PROJECT_WORK", "."), "converted_dxfs")
+INKSCAPE = "inkscape"  # ggf. vollständiger Pfad angeben
+
+os.makedirs(OUTPUT_DIR, exist_ok=True)
+
+for filename in os.listdir(INPUT_DIR):
+    if filename.lower().endswith((".svg", ".xml")):
+        in_path = os.path.join(INPUT_DIR, filename)
+        name_wo_ext = os.path.splitext(filename)[0]
+        out_path = os.path.join(OUTPUT_DIR, name_wo_ext + ".dxf")
+
+        print(f"Konvertiere: {filename} → {out_path}")
+        subprocess.run([
+            INKSCAPE,
+            in_path,
+            "--export-type=dxf",
+            f"--export-filename={out_path}"
+        ], check=True)