Add Page Number to PDF with Python

All the documents must have page numbers in it. The page number makes it easier for the reader to locate different parts of the document. Aspose.PDF for Python via .NET allows you to add page numbers with PageNumberStamp.

You can use PageNumberStamp class to add a page number stamp in a PDF file. PageNumberStamp class provides properties necessary to create a page number based stamp like format, margins, alignments, starting number etc. In order to add page number stamp, you need to create a Document object and a PageNumberStamp object using required properties. After that, you can call add_stamp() method of the Page to add the stamp in the PDF. You can also set the font attributes of the page number stamp. The following code snippet shows you how to add page numbers in a PDF file.

    import aspose.pdf as ap

    # Open document
    document = ap.Document(input_pdf)

    # Create page number stamp
    page_number_stamp = ap.PageNumberStamp()
    # Whether the stamp is background
    page_number_stamp.background = False
    page_number_stamp.format = "Page # of " + str(len(document.pages))
    page_number_stamp.bottom_margin = 10
    page_number_stamp.horizontal_alignment = ap.HorizontalAlignment.CENTER
    page_number_stamp.starting_number = 1
    # Set text properties
    page_number_stamp.text_state.font = ap.text.FontRepository.find_font("Arial")
    page_number_stamp.text_state.font_size = 14.0
    page_number_stamp.text_state.font_style = ap.text.FontStyles.BOLD
    page_number_stamp.text_state.font_style = ap.text.FontStyles.ITALIC
    page_number_stamp.text_state.foreground_color = ap.Color.aqua

    # Add stamp to particular page
    document.pages[1].add_stamp(page_number_stamp)

    # Save output document
    document.save(output_pdf)

Live Example

Add PDF page numbers is an online free web application that allows you to investigate how adding page numbers functionality works.