Make Cut-Layer unprintable of Multiple PDF's in bulk via python

script.py

import pikepdf
import os

folder_path = os.getcwd()  # Current folder
layer_to_modify = "Cut"  # Name of the layer to modify

for file in os.listdir(folder_path):
    if file.endswith(".pdf"):
        pdf_path = os.path.join(folder_path, file)
        pdf = pikepdf.Pdf.open(pdf_path)

        # Locate the /OCProperties dictionary (where layers are defined)
        ocprops = pdf.Root.get(pikepdf.Name("/OCProperties"))
        if ocprops:
            ocgs = ocprops.get(pikepdf.Name("/OCGs"))
            default_config = ocprops.get(pikepdf.Name("/D"), pikepdf.Dictionary())

            if ocgs:
                # Find the "Cut" layer object
                for layer in ocgs:
                    if layer.get(pikepdf.Name("/Name")) == layer_to_modify:
                        print(f"Modifying layer '{layer_to_modify}' in {file}")

                        # Ensure /Usage dictionary exists
                        if pikepdf.Name("/Usage") not in layer:
                            layer[pikepdf.Name("/Usage")] = pikepdf.Dictionary()

                        usage = layer[pikepdf.Name("/Usage")]

                        # Set visibility settings (create if missing)
                        if pikepdf.Name("/View") not in usage:
                            usage[pikepdf.Name("/View")] = pikepdf.Dictionary()
                        if pikepdf.Name("/Print") not in usage:
                            usage[pikepdf.Name("/Print")] = pikepdf.Dictionary()

                        usage[pikepdf.Name("/View")][pikepdf.Name("/ViewState")] = pikepdf.Name("/Never")
                        usage[pikepdf.Name("/Print")][pikepdf.Name("/PrintState")] = pikepdf.Name("/Never")

                        # Set Initial State (Turn Off Layer by Default)
                        if pikepdf.Name("/OFF") not in default_config:
                            default_config[pikepdf.Name("/OFF")] = pikepdf.Array()
                        default_config[pikepdf.Name("/OFF")].append(layer)

                        # Ensure the default settings are updated
                        ocprops[pikepdf.Name("/D")] = default_config

        # Save modified PDF
        new_pdf_path = os.path.join(folder_path, "modified_" + file)
        pdf.save(new_pdf_path)
        pdf.close()

print("Layer modified: Now hidden, unprintable, and OFF by default!")