3、how to extract text from PDFs
Using wand, pillow and tesseract
注意：pdf必须是白色底，否则识别不出来。
其实就是根据pdf转为jpg再解析，真的是，就是从前面两篇提取结合，easy job!
import io #多用了io库
from PIL import Image
import pytesseract
from wand.image import Image as wi
pdf = wi(filename='jun.pdf',resolution=300)
pdfImg = pdf.convert('jpeg')
imgBlobs = []
for img in pdfImg.sequence:
page = wi(image=img)
imgBlobs.append(page.make_blob('jpeg'))
extracted_text = []
for imgBlobs in imgBlobs:
im = Image.open(io.BytesIO(imgBlobs))
text = pytesseract.image_to_string(im,lang='chi_sim')
extracted_text.append(text)
print(extracted_text[0])
image.png
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