目录内图片转PDF多图片打印助手Python源码 - 觅风论坛

# -*- coding: utf-8 -*-
import os
import subprocess
import sys
from PIL import Image
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
def pause_exit():
subprocess.run("pause", shell=True)
exit()
def get_images(img_folder):
"""遍历目录，获取目录下所有的图片"""
img_format = (".jpg", ".png", ".bmp")
images = []
for file_name in os.listdir(img_folder):
if file_name.lower().endswith(img_format):
images.append(os.path.join(img_folder, file_name))
return sorted(images)
def get_image_size(img_file, page_width, page_height):
"""设置每个图片的大小"""
with Image.open(img_file) as img:
img_width, img_height = img.size
if img_height > page_height * 0.95 or img_width > page_width * 0.95:
height_scale = (page_height * 0.95) / img_height
width_scale = (page_width * 0.95) / img_width
scale = min(height_scale, width_scale)
img_width *= scale
img_height *= scale
return img_width, img_height
def create_pdf(pdf_file, images, page_width, page_height):
"""创建 pdf 文件，并添加图片"""
c = canvas.Canvas(pdf_file, pagesize=letter)
total_images = len(images)
for i, img_path in enumerate(images):
img_width, img_height = get_image_size(img_path, page_width, page_height)
x = (page_width - img_width) / 2
y = (page_height - img_height) / 2
c.drawImage(img_path, x, y, img_width, img_height)
c.showPage()
progress_bar(i + 1, total_images)
c.save()
def create_pdf_from_path(img_folder, pdf_file=None):
"""遍历给定路径，将路径下的图片添加进pdf，并将pdf保存在指定路径下"""
images = get_images(img_folder)
if images:
if not pdf_file:
pdf_name = os.path.basename(img_folder) + ".pdf"
pdf_file = os.path.join(img_folder, pdf_name)
page_width, page_height = letter
create_pdf(pdf_file, images, page_width, page_height)
return pdf_file
else:
print(f"{img_folder} 下没有图片，当前支持的图片格式为 jpg、png 和 bmp")
pause_exit()
def progress_bar(current, total, bar_length=60):
"""进度条"""
filled_length = int(bar_length * current // total)
bar = "+" * filled_length + "-" * (bar_length - filled_length)
percent = current / total * 100
sys.stdout.write(f"\r处理进度：|{bar}| {percent:.2f}%")
sys.stdout.flush()
if __name__ == "__main__":
subprocess.run("title 目录内图片转PDF", shell=True)
try:
(*rest,) = sys.argv[1:]
if not rest:
img_folder = os.getcwd() # 使用当前文件夹作为 img_folder
pdf_file = None
else:
img_folder, *pdf_file = rest
pdf_file = pdf_file[0] if pdf_file else None
except ValueError:
print("请提供图片文件夹路径作为参数")
pause_exit()
if not os.path.exists(img_folder):
print(f"{img_folder} 路径不存在！")
pause_exit()
elif not os.path.isdir(img_folder):
print(f"{img_folder} 不是一个文件夹！")
pause_exit()
else:
pdf_file = create_pdf_from_path(img_folder, pdf_file)
if pdf_file:
subprocess.run(["explorer", pdf_file])
else:
pause_exit()

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