PyPDF2 merge PDFs code example

Example 1: python merge pdfs

from PyPDF2 import PdfFileMerger, PdfFileReader
merger = PdfFileMerger()

merger.append(PdfFileReader(open(filename1, 'rb')))
merger.append(PdfFileReader(open(filename2, 'rb')))

merger.write("merged.pdf")

Example 2: python pdf merge

# pdf_merging.py

from PyPDF2 import PdfFileReader, PdfFileWriter

def merge_pdfs(paths, output):
    pdf_writer = PdfFileWriter()

    for path in paths:
        pdf_reader = PdfFileReader(path)
        for page in range(pdf_reader.getNumPages()):
            # Add each page to the writer object
            pdf_writer.addPage(pdf_reader.getPage(page))

    # Write out the merged PDF
    with open(output, 'wb') as out:
        pdf_writer.write(out)

if __name__ == '__main__':
    paths = ['document1.pdf', 'document2.pdf']
    merge_pdfs(paths, output='merged.pdf')