pwqw · July 20, 2022 12:34 · pwqw · Dec 13, 2021 · pwqw · Dec 13, 2021
diff --git a/encuadernar.py b/encuadernar.py
 #!/usr/bin/env python3

 import io
 import math
 import sys
 import PyPDF2

 def main(src, dst, pliegues=6):
    pliegues = int(pliegues)
    src_f = open(src, 'r+b')
    dst_f = open(dst, 'w+b')

    input_crudo = PyPDF2.PdfFileReader(src_f)
    output = PyPDF2.PdfFileWriter()

    total_pages_crudo = input_crudo.getNumPages()
    total_pages_blancas = 4 - (total_pages_crudo % 4)
    
    print('Documento original, de', total_pages_crudo, 'páginas')
    print('Páginas blancas a agregar', total_pages_blancas)
    
    if total_pages_blancas == 0:
        input = input_crudo
    else:
        writer = PyPDF2.PdfFileWriter()
        writer.appendPagesFromReader(input_crudo)
        page = PyPDF2._page.PageObject.createBlankPage(writer)
        for i in range(total_pages_blancas):
            writer.addPage(page)
            
        inmemoryfile = io.BytesIO()
        writer.write(inmemoryfile)
        input = PyPDF2.PdfFileReader(inmemoryfile)

    total_pages = input.getNumPages()
    cant_ramillete = math.ceil(total_pages / (pliegues*4))
    
    print('Cantidad total de páginas', total_pages, 'y son', total_pages // 4 ,'hojas\n')
    print('Cada "ramillete" lleva', pliegues, 'hojas plegadas')
    print('Cantidad de "ramilletes"', cant_ramillete)
    
    for ramillete in range(cant_ramillete):
    
        if ramillete == cant_ramillete-1:
            num_pages = total_pages % (pliegues*4)
        else:
            num_pages = pliegues * 4
            
        for i in range(num_pages // 2):
            
            pag_offset = (ramillete * pliegues * 4)
            pag = pag_offset + i
            tope_pliegue = pag_offset + num_pages

            if pag % 2 == 0:
                primera = input.getPage(tope_pliegue-i-1)
                segunda = input.getPage(pag)
            else:
                primera = input.getPage(pag)
                segunda = input.getPage(tope_pliegue-i-1)

            # dimensions for offset from loaded page (adding it to the right)
            offset_x = primera.mediaBox[2]
            offset_y = 0

            # add second page to first one
            primera.mergeTranslatedPage(segunda, offset_x, offset_y, expand=True)
            output.addPage(primera)

    output.write(dst_f)
    src_f.close()
    dst_f.close()


 if __name__ == '__main__':
    main(*sys.argv[1:])
	#!/usr/bin/env python3

	import io
	import math
	import sys
	import PyPDF2

	def main(src, dst, pliegues=6):
	pliegues = int(pliegues)
	src_f = open(src, 'r+b')
	dst_f = open(dst, 'w+b')

	input_crudo = PyPDF2.PdfFileReader(src_f)
	output = PyPDF2.PdfFileWriter()

	total_pages_crudo = input_crudo.getNumPages()
	total_pages_blancas = 4 - (total_pages_crudo % 4)

	print('Documento original, de', total_pages_crudo, 'páginas')
	print('Páginas blancas a agregar', total_pages_blancas)

	if total_pages_blancas == 0:
	input = input_crudo
	else:
	writer = PyPDF2.PdfFileWriter()
	writer.appendPagesFromReader(input_crudo)
	page = PyPDF2._page.PageObject.createBlankPage(writer)
	for i in range(total_pages_blancas):
	writer.addPage(page)

	inmemoryfile = io.BytesIO()
	writer.write(inmemoryfile)
	input = PyPDF2.PdfFileReader(inmemoryfile)

	total_pages = input.getNumPages()
	cant_ramillete = math.ceil(total_pages / (pliegues*4))

	print('Cantidad total de páginas', total_pages, 'y son', total_pages // 4 ,'hojas\n')
	print('Cada "ramillete" lleva', pliegues, 'hojas plegadas')
	print('Cantidad de "ramilletes"', cant_ramillete)

	for ramillete in range(cant_ramillete):

	if ramillete == cant_ramillete-1:
	num_pages = total_pages % (pliegues*4)
	else:
	num_pages = pliegues * 4

	for i in range(num_pages // 2):

	pag_offset = (ramillete * pliegues * 4)
	pag = pag_offset + i
	tope_pliegue = pag_offset + num_pages

	if pag % 2 == 0:
	primera = input.getPage(tope_pliegue-i-1)
	segunda = input.getPage(pag)
	else:
	primera = input.getPage(pag)
	segunda = input.getPage(tope_pliegue-i-1)

	# dimensions for offset from loaded page (adding it to the right)
	offset_x = primera.mediaBox[2]
	offset_y = 0

	# add second page to first one
	primera.mergeTranslatedPage(segunda, offset_x, offset_y, expand=True)
	output.addPage(primera)

	output.write(dst_f)
	src_f.close()
	dst_f.close()


	if __name__ == '__main__':
	main(*sys.argv[1:])