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The data of the pdf file was transferred, but the text extraction of the pdf failed

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Posted on by CU08120844-0

Hello,

I have created a site that extracts text from PDF files. When I call this site locally, it successfully extracts text from PDFs (e.g., using the following command in cmd:
curl -X POST -H "Content-Type: application/pdf" --data-binary "@E:\TestFiles\Easy Chicken Curry02.pdf" "https://xxxxxxxxxxxxxxxxx.net/api/GetPDFText").

However, when I create a cloud flow using Power Automate to call this site, the extraction functionality fails. I suspect that the PDF file format may have been altered during the upload process, preventing my site from processing it correctly. Could you advise on how to resolve this issue? Below are screenshots of my configuration:

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Power Automate Desktop

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Power Platform 1919 2,205 Super User 2026 Season 1 on at

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Hi @CU08120844-0,

Can you share the exact error message which you're seeing.
based on your assumption, that file is altered can you try

base64ToBinary() function in power automate, this will convert the file to binary content and try again, if this helps.

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CU08120844-0 2 on at

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Thank you for your response.

To clarify, I am using a third-party plugin to implement the text extraction functionality. Based on my current configuration (as shown in previous screenshots), the error "unsupported format" is being reported by the third-party plugin. While configuring according to your suggestions eliminates the error, it does not return the extracted text.

The reason I suspect Power Automate may be modifying the uploaded data is that when I call the site via the cmd method (as previously mentioned), extraction works normally, but it fails when using the Power Automate platform.

I would like to inquire: does Power Automate perform any data adjustments during the file upload process? Is it possible to configure Power Automate to pass data to my site exactly as it does with the cmd command upload method?

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