How to Convert Document into PDF in Power Automate (Free Method Only)

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Posted on by CU25060522-1

Hi Community,

I'm trying to convert a document to PDF using Power Automate without using any premium connectors like Encodian, Muhimbi, or third-party services like Cloudmersive.

Here's what I've tried so far:
compose
==========
{
"image": {
"mime": "image/png",
"data": "iVBORw0K....."
}
}

compose 2
===========
@{outputs('Compose')?['image']['data']}

create file (sharepoint)
=================
File Name : test.pdf
File Content : @{base64ToBinary(outputs('Compose_2'))}

But this does not work — the file gets created, but it's either corrupted or not recognized as a valid PDF.

My Question:

How can I convert a base64 image or document into a proper PDF file using only free tools or native actions in Power Automate (e.g., Word Online, OneDrive, or SharePoint built-in options)?

I'm open to:

HTML to PDF using Word Online
Word to PDF using OneDrive or SharePoint
Any method that does not require premium connectors or third-party APIs

Thanks in advance 🙏

Categories:

Building flows

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venturemavenwill 1,193 Super User 2026 Season 1 on at

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Here is a good guide on how to convert HTML to pdf in Power Automate

Keep in mind though that this workaround does take a lot of time from build to run, so it's not recommended for larger volume use cases.

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Pstork1 69,125 Most Valuable Professional on at

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The problem is primarily that your file content is an image and not a full document to convert to PDF. To do this using the Free connectors you need to build a simple HTML document format, put the image or other data you want in the document and then convert that to PDF. This video from Shane Young will walk you through a full example. Create a PDF from SharePoint Data using Power Apps and Power Automate flow for free

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Paul Papanek Stork, MVP
Blog: https://www.dontpapanic.com/blog

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