不多BB，直接上代码：
from reportlab.pdfgen import canvas
from reportlab.lib.units import inch, cm
from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, Paragraph, Image, PageBreak
from reportlab.lib.pagesizes import A4,A3,A2,A1, legal, landscape
from reportlab.lib.utils import ImageReader
import PIL.Image,PIL.ExifTags
from os import listdir
import os,re
import time
from reportlab.lib.units import inch
def img_search(mypath, filenames):
for lists in os.listdir(mypath):
path = os.path.join(mypath,lists)
if os.path.isfile(path):
expression = r'[\w]+\.(jpg|png|jpeg)$'
if re.search(expression, path, re.IGNORECASE):
filenames.append(path)
elif os.path.isdir(path):
img_search(path, filenames)
# 加入了文件名排序
def img_search1(mypath, filenames):
fn = os.listdir(mypath)
# 切割文件名下标24:-4的内容，并转int类型进行升序排序
fn.sort(key=lambda x:int(x[24:-4]))
for lists in fn:
path = os.path.join(mypath,lists)
if os.path.isfile(path):
a = path.split('.')
if a[-1] in ['jpg', 'png', 'JPEG']:
filenames.append(path)
elif os.path.isdir(path):
img_search1(path,filenames)
def rotate_img_to_proper(image):
try:
# image = Image.open(filename)
if hasattr(image, '_getexif'): # only present in JPEGs
for orientation in PIL.ExifTags.TAGS.keys():
if PIL.ExifTags.TAGS[orientation] == 'Orientation':
break
e = image._getexif() # returns None if no EXIF data
if e is not None:
#log.info('EXIF data found: %r', e)
exif = dict(e.items())
orientation = exif[orientation]
# print('found, ',orientation)
if orientation == 3:
image = image.transpose(Image.ROTATE_180)
elif orientation == 6:
image = image.transpose(Image.ROTATE_270)
elif orientation == 8:
image = image.rotate(90,expand=True)
except:
pass
return image
def main(output_file_name,src_folder=None):
# output_file_name = 'out.pdf'
#save_file_name = 'ex.pdf'
#doc = SimpleDocTemplate(save_file_name, pagesize=A1,
# rightMargin=72, leftMargin=72,
# topMargin=72, bottomMargin=18)
imgDoc = canvas.Canvas(output_file_name)#pagesize=letter
imgDoc.setPageSize((2333,1313))
document_width,document_height = 2333,1313
if src_folder is None: mypath = input('Input the image folder please:')
else: mypath = src_folder
filenames=[]
start = time.time()
img_search1(mypath, filenames)
end = time.time()
print('find file cost time: ', end-start, 'find files: ', len(filenames))
# for f in filenames:
# print(f)
for image in filenames:
try:
image_file = PIL.Image.open(image)
image_file = rotate_img_to_proper(image_file)
image_width, image_height = image_file.size
print('img size:', image_file.size)
if not(image_width>0 and image_height>0):
raise Exception
image_aspect = image_height/float(image_width)
#Determins the demensions of the image in the overview
print_width = document_width
print_height = document_width*image_aspect
imgDoc.drawImage(ImageReader(image_file),document_width-print_width,
document_height-print_height,width=print_width,
height=print_height,preserveAspectRatio=True)
#inform the reportlab we want a new page
imgDoc.showPage()
except Exception as e:
print('error:',e,image)
imgDoc.save()
print('Done')
if __name__ == '__main__':
main(output_file_name="E:\File\my\转出.pdf", src_folder="E:\File\my\images")
