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47 lines
2 KiB
Python
47 lines
2 KiB
Python
#!/usr/bin/env python3
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# This is a script to paste small scanned ID cards in an A4 page for printing
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# I use it to quickly organize the pages for printing
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# Syntax : script.py filename width_in_cm -o [optional, to overwrite output file]
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import sys
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import os
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from pdf2image import convert_from_path
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from PIL import Image
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if len(sys.argv) < 3:
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raise Exception(
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'Not enough arguments.\nUse the syntax "script.py filename width_in_cm -o [optional, to overwrite output file]"')
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filename = sys.argv[1]
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if not os.path.isfile(filename):
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raise Exception('File {} not present', format(filename))
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if filename.split('.')[-1] != 'pdf':
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raise Exception('Given file is not a PDF')
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if filename.split('/')[-1].split(']')[0] == '[printable':
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raise Exception('File has already been processed')
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print('Processing '+filename.split('/')[-1])
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# converting to inch from cm at 300 dpi
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new_width = int(int(sys.argv[2])*0.3937*300)
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overwrite_status = '-n'
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if len(sys.argv) > 3:
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overwrite_status = sys.argv[3]
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images = convert_from_path(filename)
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a4size = int(8.27*300), int(11.7*300)
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a4page = Image.new('RGB', a4size, 'white') # A4 at 300 dpi
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pagenum = len(images)
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widths = [images[i].size[0] for i in range(pagenum)]
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heights = [images[i].size[1] for i in range(pagenum)]
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new_heights = [int(heights[i]*new_width/widths[i]) for i in range(pagenum)]
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gap = int(max(new_heights)/pagenum)
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total_height = sum(new_heights)+gap*(pagenum-1)
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if new_width > a4size[0] or total_height > a4size[1]:
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raise Exception('Given width is too big for A4 page')
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for i in range(pagenum):
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a4page.paste(images[i].resize((new_width, new_heights[i]), Image.LANCZOS), (int(
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(a4size[0]-new_width)/2), int((a4size[1]-total_height)/2+i*(new_heights[i-1]+gap))))
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new_filename = '[printable] ' + filename.split('/')[-1].split('.')[0] + '.pdf'
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if os.path.isfile(new_filename) and overwrite_status != '-o':
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raise Exception('File '+new_filename +
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' is already present. Add -o at the end to overwrite')
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a4page.save(new_filename, quality=95)
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print('File '+new_filename+' created.')
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