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wkhtmltopdf AWS Lambda

Lambda Layer

Build layer:

$ make build/wkhtmltox-layer.zip

# to test your build run
$ make test.wkhtmltox

Keep in mind that you wkhtmltox contains both pdf and image rendering tools, if you need only pdf rendering use make build/wkhtmltopdf-layer.zip, of images make build/wkhtmltoimage-layer.zip this will reduce the size of the layer.

Deploy layer:

$ aws lambda publish-layer-version \
    --region <region> \
    --layer-name <name> \
    --zip-file fileb://build/wkhtmltox-layer.zip

Lambda Function

Simple lambda function provided, it requires BUCKET=<bucket name> env variable if files stored on s3.

Example payload to print grayscaled pdf from url and return content encoded in base64:

{"args": "--grayscale https://google.com", "filename": "google.pdf", "return": "base64"}

Example paylod to print png from html and return lowquality jpeg content encoded in base64:

{"args": "--lowquality /tmp/report.html", "inputs": {"/tmp/report.html": "<h1>Header</h1><p>Text</p>"}, "filename": "doc.jpg"}