Process Large HTML to PDF or URL to PDF Conversions in Zapier
For HTML to PDF
For URL to PDF
In this step-by-step tutorial, you will learn how to process large files using async in Zapier.
I’ve prepared a sample file that we can use for this tutorial.
For HTML to PDF

For URL to PDF

Let’s start by Creating a Zap!
Step 1 – Setup Action, select PDF.co as the App Event
- Search and select PDF.co from the list of trigger apps
Step 2 – Select Custom API Call as the Action Event
- Select Custom API Call from the list of action events
For HTML to PDF
Step 3 – Setup PDF.co Action
- For the PDF.co API Endpoint, select
v1/pdf/convert/from/html
- For Input JSON, add the parameters and value
- For Run as Async Job, set it to true
- For Async Job Check Interval, set it to higher if the file is large
Step 4 – Test PDF.co Action
- Once you’re done setting up the action, you may now test it
Step 5 – Output PDF
- Here’s the output PDF

For URL to PDF
Step 3 – Setup PDF.co Action
- For the PDF.co API Endpoint, select
v1/pdf/convert/from/url
- For Input JSON, add the parameters and value
- For Run as Async Job, set it to true
- For Async Job Check Interval, set it to higher if the file is large
Step 4 – Test PDF.co Action
- Once you’re done setting up the action, you may now test it
Step 5 – Output PDF
- Here’s the output PDF

You’ve learned how to process large HTML to PDF or URL to PDF conversions in Zapier.