diff --git a/README.md b/README.md index 29eb825..d0b6b07 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,4 @@ -![Number of scripts](https://img.shields.io/badge/number_of_scripts-33-blue) +![Number of scripts](https://img.shields.io/badge/number_of_scripts-34-blue) # Random Scripts This repository is for random scripts I wrote mostly for personal use. diff --git a/convert-for-office-printer.py b/convert-for-office-printer.py new file mode 100644 index 0000000..4f0cf00 --- /dev/null +++ b/convert-for-office-printer.py @@ -0,0 +1,69 @@ +#!/usr/bin/env python3 + +# This is a script to prepare a document to be printed on my office printer +# which only prints in B&W (not grayscale) letter size pages. It sometimes +# cuts edges and/or prints colors too light if the conversion to itself. +# Hence, this script. As a plus, A4 paper is supported too. + +# Syntax : script.py filename -o [optional, to overwrite output file] + +import sys +import os +from pdf2image import convert_from_path +from PIL import Image + +if len(sys.argv) < 3: + raise Exception( + 'Not enough arguments.\nUse the syntax "script.py filename size(letter/a4) -o [optional, to overwrite output file]"') + +filename = sys.argv[1] +if not os.path.isfile(filename): + raise Exception('File {} not present', format(filename)) +if filename.split('.')[-1] != 'pdf': + raise Exception('Given file is not a PDF') +if filename.split('/')[-1].split(']')[0] == '[office_print': + raise Exception('File has already been processed') +print('Processing '+filename.split('/')[-1]) + +overwrite_status = '-n' +if len(sys.argv) > 3: + overwrite_status = sys.argv[3] + +page_size = sys.argv[2].lower() +if page_size not in ["a4", "letter"]: + raise Exception( + 'Unknown paper size! Only supported sizes are A4 and Letter.') + +pdf = convert_from_path(filename) + +a4size = int(8.27*300), int(11.7*300) +lettersize = int(8.5*300), int(11*300) + +if page_size == "a4": + new_size = a4size +else: + new_size = lettersize + +pagenum = len(pdf) + +new_pdf = list() +for i in range(pagenum): + page = Image.new('L', new_size, 'white') # The '1' means black and white + old_size = pdf[i].size + ratio = min(new_size[0]/old_size[0], new_size[1]/old_size[1]) + resize_to = round(old_size[0]*ratio), round(old_size[1]*ratio) + offset = round((new_size[0]-resize_to[0]) / + 2), round((new_size[1]-resize_to[1])/2) + page.paste(pdf[i].resize(resize_to, Image.LANCZOS), offset) + page_bw = page.point(lambda x: round(x/12) if 16 < x < 192 else x, 'L') + new_pdf.append(page_bw) + +new_filename = '[office_print] ' + \ + filename.split('/')[-1].split('.')[0] + '.pdf' +if os.path.isfile(new_filename) and overwrite_status != '-o': + raise Exception( + 'File '+new_filename+' is already present. Add -o at the end to overwrite') + +new_pdf[0].save(new_filename, "PDF", quality=100, + save_all=True, append_images=new_pdf[1:]) +print('File '+new_filename+' was created.')