This python program mergers different pdf this is specially designed for applying watermark and combining different pdf into single watermarked pdf
python3 wtrmrk.py
python3 -m pip install --upgrade pip
python3 -m pip install PyPDF2
python3 -m pip install --upgrade pip
python3 -m pip install PyPDF2
python3 -m pip install --upgrade pip
python3 -m pip install PyPDF2
python3 -m pip install --upgrade pip
python3 -m pip install PyPDF2