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https://github.com/SinTan1729/random.git
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48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
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#!/bin/env python3
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# This script resized all pages of a given pdf to make them all the same width.
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# It can be set up to make them all the same as the min width of the given pdf,
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# or the max width, or a custom width.
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from argparse import ArgumentParser
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from pypdf import PdfReader, PdfWriter
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from pathlib import Path
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parser = ArgumentParser(
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prog = 'Normalize PDF pagewidth',
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description = 'A small program that does exactly what it says',
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epilog = 'For each input file \'input.pdf\', the output file will be named \'input-norm.pdf\''
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)
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parser.add_argument('filename', help = 'The name of the input file. Multiple files can be supplied at once.', nargs = '+')
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parser.add_argument('-w', '--width', default = 'min', help = 'The desired width. Can be \'max\', \'min\', or a number in pixels. Defaults to min.')
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args = vars(parser.parse_args())
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w = args['width']
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if w != 'min' and w != 'max' and not w.isnumeric():
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print('Invalid width. Only min, max or numeric values are supported.')
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exit(-1)
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for file in args['filename']:
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print('Processing ' + file + '...')
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try:
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reader = PdfReader(file)
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except:
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print('There was some error trying to read the file.')
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else:
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pages = reader.pages
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outfile = Path(file).stem + '-norm.pdf'
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if w == 'min':
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outw = min([pages[i].mediabox.width for i in range(len(pages))])
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elif w == 'max':
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outw = max([pages[i].mediabox.width for i in range(len(pages))])
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else:
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outw = w
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writer = PdfWriter()
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for page in pages:
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dim = page.mediabox
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outh = dim.height * (outw / dim.width)
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page.scale_to(width = outw, height = outh)
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writer.add_page(page)
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with open(outfile, 'wb+') as f:
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writer.write(f)
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