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Automate PPTX to PDF Conversion with n8n and ConvertAPI

Struggling to manually convert PowerPoint presentations to PDFs? This n8n workflow automates the download of a PPTX file, converts it to PDF via ConvertAPI, and saves the final document locally, saving you time and effort.

manualTrigger

httpRequest

readWriteFile

+1

Workflow Identifier: 2470

NODES in Use: manualTrigger, httpRequest, readWriteFile, stickyNote

Updated: October, 2025

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Frequently Asked Questions

Can the workflow use user’s own PowerPoint files?

Yes, replace the URL in the Download PPTX File node with a public link to the desired file.

What causes 401 Unauthorized errors in the ConvertAPI node?

Such errors happen due to missing or wrong API Key in the node’s authentication settings.

How to fix empty files saved by the Write Result File to Disk node?

Ensure the node references the correct binary data property named exactly =data.

Is it possible to automate recurring conversions?

Yes, replacing the manual trigger with a Cron node enables scheduled automatic runs.

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