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PDF → Merge PDFs

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Summary

Merge two or more PDF files and/or existing document IDs into a single PDF file using optional merge order.

Inputs

  • Document IDs — Specify up to 10 document IDs to include in the merge.
  • Merge Order (required) — Choose whether to merge files first then documents, or documents first then files.
  • Task Description — Optional description to identify the merge task.
  • Wait for Completion — Whether to wait for the merge task to complete and return the merged file immediately; if false, the node returns a task ID to track progress.

Output shape

The operation returns either the merged PDF file if waiting for completion, or a task ID for asynchronous processing.

You must provide at least two PDF inputs combined from binary files attached to the node input (up to 10) and/or document IDs (up to 10). The node uploads the files and document IDs as multipart/form-data to the Bulldoc APIPOST /v1/pdf/merge endpoint. If waiting for completion, the merged PDF file is returned in the output; otherwise, a task ID is returned and you must use a separate call or webhook to retrieve the merged file later.

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