When someone reaches the final surah ( An-Nas ), it is customary to recite a specific prayer called the . This is why many look for a PDF:
اَللَّهُمَّ ارْحَمْنِي بِالْقُرْآنِ، وَاجْعَلْهُ لِي إِمَامًا وَنُورًا وَهُدًى وَرَحْمَةً khatmul quran pdf
This is a standard supplication frequently recited upon completion: When someone reaches the final surah ( An-Nas