from pathlib import Path
from pypdf import PdfReader

for pdf in Path("dokumen").glob("*.pdf"):
    r = PdfReader(pdf)
    teks = "\n".join((p.extract_text() or "") for p in r.pages)
    print("=" * 50)
    print("File   :", pdf.name)
    print("Halaman:", len(r.pages))
    print("Panjang teks:", len(teks))
    print("500 karakter pertama:")
    print(teks[:500])