diff --git a/bin/dxfs2lib.bat b/bin/dxfs2lib.bat
new file mode 100644
index 0000000..14cdf5a
--- /dev/null
+++ b/bin/dxfs2lib.bat
@@ -0,0 +1,10 @@
+@echo off
+REM ~dp0 steht für das Verzeichnis, in der diese Datei liegt 
+
+call setenv.bat
+
+REM Beispielaufruf mit Parametern:
+REM --in: Ordner mit .dxf-Dateien (optional. Standard: work/converted_dxfs)
+REM --name: Name der zu erzeugenden Bibliothek
+
+python %PROJECT_LIB%\dxf2lib.py %*
\ No newline at end of file
diff --git a/bin/svg2dxf.bat b/bin/svg2dxf.bat
new file mode 100644
index 0000000..a8ba4c8
--- /dev/null
+++ b/bin/svg2dxf.bat
@@ -0,0 +1,10 @@
+@echo off
+REM ~dp0 steht für das Verzeichnis, in der diese Datei liegt 
+
+call setenv.bat
+
+REM Beispielaufruf mit Parametern:
+REM --in: Ordner mit .svg bzw. .xml-Dateien (optional. Standard: data/svg)
+REM --out: Zielverzeichnis (optional. Standard: work/converted_dxfs)
+
+python %PROJECT_LIB%\svg2dxf.py %*
\ No newline at end of file
diff --git a/lib/dxf2lib.py b/lib/dxf2lib.py
new file mode 100644
index 0000000..b73a5b6
--- /dev/null
+++ b/lib/dxf2lib.py
@@ -0,0 +1,118 @@
+import os
+import ezdxf
+from ezdxf.math import Vec2
+import argparse
+import sys
+# 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
+
+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:
+            # Für POLYLINE-Entities: Bounding Box manuell berechnen
+            if e.dxftype() == "POLYLINE":
+                if hasattr(e, 'vertices') and len(e.vertices) > 0:
+                    for vertex in e.vertices:
+                        if hasattr(vertex, 'dxf') and hasattr(vertex.dxf, 'location'):
+                            x, y = vertex.dxf.location.x, vertex.dxf.location.y
+                            min_x, min_y = min(min_x, x), min(min_y, y)
+                            max_x, max_y = max(max_x, x), max(max_y, y)
+            else:
+                # Für andere Entity-Typen: Standard bbox() verwenden
+                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 as err:
+            print(f"    BBox Fehler für {e.dxftype()}: {err}")
+            continue
+    if min_x == float('inf'):
+        return None
+    return Vec2((min_x + max_x) / 2, (min_y + max_y) / 2)
+
+if __name__ == "__main__":
+    # Argumentparser für Kommandozeilenoptionen
+    parser = argparse.ArgumentParser(description="SVG/XML zu DXF Konverter")
+    parser.add_argument('-i', '--input', type=str, help='Input-Verzeichnis mit SVG/XML-Dateien')
+    parser.add_argument('-n', '--name', required=True, type=str, help='Name der zu erzeugenden Bibliothek')
+    
+    if len(sys.argv) == 2 and sys.argv[1] in ("-h", "--help"):
+        parser.print_help()
+        sys.exit(0)
+        
+    args = parser.parse_args()
+
+     # Verzeichnisse über Umgebungsvariablen oder Fallback
+    if args.input:
+        INPUT_DIR = args.input
+        print(f"Verwende Input-Verzeichnis: {INPUT_DIR}")
+    else:
+        INPUT_DIR = os.path.join(check_environment_var("PROJECT_WORK", "."), "converted_dxfs")
+        print(f"Kein Input-Verzeichnis angegeben, verwende Standard: {INPUT_DIR}")
+
+    OUTPUT_FILE = os.path.join(check_environment_var("PROJECT_DATA", "."),"block_libaries", f"{args.name}.dxf")
+
+    doc = ezdxf.new()
+    msp = doc.modelspace()
+
+    x_offset = 0
+    y_offset = 0
+    blocks_in_row = 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)
+            allowed_types = {"LINE", "LWPOLYLINE", "POLYLINE", "SPLINE", "CIRCLE", "ARC"}
+            filtered_entities = [e for e in entities if e.dxftype() in allowed_types]
+            entities = filtered_entities
+        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}")
+
+        # Platzierung in Reihen und Spalten
+        msp.add_blockref(name, insert=(x_offset, y_offset))
+        # Text mit Blocknamen über dem Block
+        text_y = y_offset + 150  # 150 Einheiten über dem Block
+        msp.add_text(name, dxfattribs={'height': 20, 'insert': (x_offset-150, text_y)})
+        blocks_in_row += 1
+        x_offset += 350  # Abstand zwischen Blöcken in einer Reihe
+        if blocks_in_row == 20:
+            blocks_in_row = 0
+            x_offset = 0
+            y_offset -= 500  # Neue Zeile, nach unten versetzt
+
+    print(f"Bibliotheks-DXF gespeichert: {OUTPUT_FILE}")
+    doc.saveas(OUTPUT_FILE)
diff --git a/lib/svg2dxf.py b/lib/svg2dxf.py
index a942832..2c21891 100644
--- a/lib/svg2dxf.py
+++ b/lib/svg2dxf.py
@@ -1,6 +1,7 @@
 import os
 import subprocess
 import sys
+import argparse
 
 # Hilfsfunktion wie in plant2dxf.py
 
@@ -11,23 +12,48 @@ def check_environment_var(env_str: str, fallback: str) -> str:
     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)
+if __name__ == "__main__":
+    # Argumentparser für Kommandozeilenoptionen
+    parser = argparse.ArgumentParser(description="SVG/XML zu DXF Konverter")
+    parser.add_argument('-i', '--input', type=str, help='Input-Verzeichnis mit SVG/XML-Dateien')
+    parser.add_argument('-o', '--output', type=str, help='Output-Verzeichnis für DXF-Dateien')
+    
+    if len(sys.argv) == 2 and sys.argv[1] in ("-h", "--help"):
+        parser.print_help()
+        sys.exit(0)
+        
+    args = parser.parse_args()
 
-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")
+    # Verzeichnisse über Umgebungsvariablen oder Fallback
+    if args.input:
+        INPUT_DIR = args.input
+        print(f"Input-Verzeichnis: {INPUT_DIR}")
+    else:
+        INPUT_DIR = os.path.join(check_environment_var("PROJECT_DATA", "."), "svg")
+        print(f"Kein Input-Verzeichnis angegeben, verwende Standard: {INPUT_DIR}")
 
-        print(f"Konvertiere: {filename} → {out_path}")
-        subprocess.run([
-            INKSCAPE,
-            in_path,
-            "--export-type=dxf",
-            f"--export-filename={out_path}"
-        ], check=True)
+    if args.output:
+        OUTPUT_DIR = args.output
+        print(f"Output-Verzeichnis: {OUTPUT_DIR}")
+    else:
+        OUTPUT_DIR = os.path.join(check_environment_var("PROJECT_WORK", "."), "converted_dxfs")
+        print(f"Kein Output-Verzeichnis angegeben, verwende Standard: {OUTPUT_DIR}")
+
+    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)