PDF file corrupted when attched to an Email

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Posted on 3 Aug 2018 11:26:23 by Michael Dohr

Hi,

i have a flow that reads a note form Dynamics 365. I do get a proper base64 string that i can decode to get the actual pdf-file using e.g. base64decode.org.

However, when i attach the file to an "Office 365 Outlook - Send email action using: decodebase64(BASE64STRING) i dont get an error in flow but the file received in outlook is corrupt and cannot be opened.

I also noticed that the filsize shown as email attachment is actually ~25% larger than the acutal file from Dynamics.

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Answers (1)

Pashket 3 on 20 Nov 2023 at 02:58:12

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Re: PDF file corrupted when attched to an Email

Thank you so much for this comment, you saved my day!
alejandradlt 2 on 01 Apr 2022 at 21:59:57

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Re: PDF file corrupted when attched to an Email

I have a similar problem, my flow creates a pdf in SharePoint file out of a paginated report. The flow then emails to file as an attachment. I can open the pdf file in SharePoint just fine, but the attachment in the email is corrupted. Has anyone been able to solve a similar case?. This particular flow starts with a Power App. But I have another flow that runs with a timer, and the attach a pdf file to an email that is not corrupted!!
tlfmd 2 on 20 May 2019 at 19:05:40

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Re: PDF file corrupted when attched to an Email

PDF file obtained from HP MFP277 was emailed and received corrupted, as was the original file still on computer.
It was readable prior to emailing
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Michael Dohr 23 on 09 Aug 2018 at 09:27:16

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Re: PDF file corrupted when attched to an Email

Ok,

in the end this was an easy "fix".
I had to use "Base64toBinary" in the expression to convert my Base64-string.
Erik-de-Rooij 23 on 09 Aug 2018 at 09:18:06

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Re: PDF file corrupted when attched to an Email

I never used files from Dynamics 365 before, but you could probably save the file to Azure storage (or SharePoint/OneDrive for debugging) and check if the PDF is correct. If so, you could attach the file from that temporary location and delete it afterwards.

Just a thought to keep you going.

Best regards,
Erik
Michael Dohr 23 on 09 Aug 2018 at 09:05:46

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Re: PDF file corrupted when attched to an Email

Hi,

i just realized that the same thing happens to *.docx files. Looks like every document im reading form a note inside dynamics gets corrupted when sending it as an outlook email attachement.

Has anyone tried reading a doucment from a note inside DYnamics 365 and and send it by email via Office 365 Outlook?
Michael Dohr 23 on 06 Aug 2018 at 11:04:40

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Re: PDF file corrupted when attched to an Email

Hi,

here you go.
P.s. basically im reading the document from a note inside Dynamcis 365. This note is attached to a custom entity.

Flow is triggered by a Canvas App. via creating a custom entity called "mscrm-addons AutoMergeWorkingitem" a document generation process is triggered. Once the item becomes inactive the document can be grabbed from a lookup to another custom entity that has the document stored as a note. from there i read the file (as base 64) and then try to send it off by email.

thanks
v-yuazh-msft on 06 Aug 2018 at 02:06:14

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Re: PDF file corrupted when attched to an Email

Hi @mathocom,

Could you please share a full screenshot of the configuration of your flow?

How could you get the proper base64 string?

Please share more details so we would try to provide a proper workaround for you.

Best regards,

Alice