pdfform-lambda

This project demonstrates creating a serverless application for populating fillable PDFs.

Technologies Used

• Node.js
• AWS Lambda
• AWS API Gateway
• AWS CloudWatch
• Terraform

Deploying

terraform -chdir=tf apply

or

cd tf
terraform apply

Usage

Listing the fields of a fillable PDF:

curl --request POST \
    --url https://11hnc9oxr8.execute-api.us-east-2.amazonaws.com/test/listFields \
    --header 'content-type: application/json' \
    --data '{"pdf": "https://www.irs.gov/pub/irs-pdf/fw9.pdf"}'

Response:

{"f1_1":[{"type":"string"}],"f1_2":[{"type":"string"}],"f1_9":[{"type":"string"}],"f1_10":[{"type":"string"}],"c1_1":[{"type":"boolean"},{"type":"boolean"},{"type":"boolean"},{"type":"boolean"},{"type":"boolean"},{"type":"boolean"},{"type":"boolean"}],"f1_3":[{"type":"string"}],"f1_4":[{"type":"string"}],"f1_5":[{"type":"string"}],"f1_6":[{"type":"string"}],"f1_7":[{"type":"string"}],"f1_8":[{"type":"string"}],"f1_11":[{"type":"string"}],"f1_12":[{"type":"string"}],"f1_13":[{"type":"string"}],"f1_14":[{"type":"string"}],"f1_15":[{"type":"string"}]}

Transforming a fillable PDF using field values:

curl --request POST \
    --url https://11hnc9oxr8.execute-api.us-east-2.amazonaws.com/test/transform \
    --header 'content-type: application/json' \
    --data '{
        "pdf": "https://www.irs.gov/pub/irs-pdf/fw9.pdf",
        "fields": {
            "f1_1": ["FirstName LastName"],
            "f1_2": ["CompanyName"],
            "c1_1": [1,0,0,0,0,0,0],
            "f1_7": ["123 Fake Street"],
            "f1_8": ["Cincinnati, OH 45241"],
            "f1_14": ["12"],
            "f1_15": ["3456789"]
        }
    }' \
    --output /tmp/output.pdf

The filled PDF will be written to /tmp/output.pdf