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In some cases you want to convert a PDF to an Image. Here in this gist we show how to convert a PDF stored on an Azure Blob Storage to an JPEG. We use here Azure Function with a Docker Container. The python script use the libary pdf2image https://github.com/Belval/pdf2image
| import os, io | |
| import logging | |
| from PIL import Image | |
| import azure.functions as func | |
| import tempfile | |
| from azure.storage.blob import BlockBlobService | |
| from pdf2image import convert_from_path, convert_from_bytes | |
| BlobAccount = os.environ['BlobAccount'] | |
| BlobKey = os.environ['BlobKey'] | |
| BlobItem = os.environ['BlobItem'] | |
| def main(myblob: func.InputStream): | |
| logging.info(f"Python blob trigger function processed blob \n" | |
| f"Name: {myblob.name}\n" | |
| f"Blob Size: {myblob.length} bytes") | |
| file = myblob.read() | |
| image = io.BytesIO(file) | |
| blob_service = BlockBlobService(account_name=BlobAccount, account_key=BlobKey) | |
| blob_name = myblob.name.replace(BlobItem + "/", "") | |
| with open(blob_name, "wb") as outfile: | |
| # Copy the BytesIO stream to the output file | |
| outfile.write(image.getbuffer()) | |
| with tempfile.TemporaryDirectory() as path: | |
| pages = convert_from_path(blob_name,dpi=600, output_folder=path) | |
| x=1 | |
| for page in pages: | |
| filename = str(x)+".jpg" | |
| page.save(filename, "JPEG") | |
| x = x +1 | |
| blob_service.create_blob_from_path(BlobItem,filename,filename) | |
| os.remove(filename) | |
| os.remove(blob_name) |
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