from pathlib import Path
import os
from pikepdf import Pdf, Name

def set_single_page_view(filepdfin: str | os.PathLike):
    filepdfin = Path(filepdfin)
    with Pdf.open(filepdfin, allow_overwriting_input=True) as pdf:
        pdf.Root.PageLayout = Name('/SinglePage')  # one page at a time, no continuous scroll
        pdf.Root.PageMode   = Name('/UseNone')     # no thumbnails/bookmarks on open
        # Optional: keep file ID stable and re-linearize for "Fast Web View"
        pdf.save(filepdfin, static_id=True, linearize=True)

cesta = r"z:\dropbox\ordinace\Dokumentace_ke_zpracování"
for name in os.listdir(cesta):
    p = os.path.join(cesta, name)
    if os.path.isfile(p) and name.upper().endswith(".PDF"):
        set_single_page_view(p)