# Merge PDF documents

Combine several PDF documents into one, in the order you supply them, in a Zap. No code to write, and no document is stored after the Zap runs.

Use this action to combine multiple PDF documents into a single PDF
document.

## Input

<ParamField name="PDF Documents" type="file" required>
  The list of PDF documents to combine. Add each input PDF document to the
  list; they are merged in the order they appear.
</ParamField>

## Output

<ParamField name="File" type="file">
  A file with the merged PDF document. You can use it as input to other
  steps in your zap.
</ParamField>