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Compressing images

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Posted on by Matt383

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Hi, i have a powerapp jobcard that saves to a collection when submitted. It is then patch to sharepoint when online. The problem i am having is when someone attaches to many photos, it will not upload to sharepoint. There is no error messages just doesnt patch through. Is there a way to compress the images before sending to sharepoint?

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WarrenBelz 154,447 Most Valuable Professional on at

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Hi @Matt383 ,

No unfortunately - how many photos are you talking about here and how big are the photos?

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Matt383 407 on at

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Hi Warren, 4 images. Ranging from 1mb - 4mb per image. If the images are small they go through fine, otherwise, the user has to delete images until it sends.

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WarrenBelz 154,447 Most Valuable Professional on at

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Hi @Matt383 ,

Very strange (I was expecting much bigger numbers). What is your Patch code (in a Code box </> if possible)?

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Matt383 407 on at

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Hi Warren,
both samples below are on the same submit button.
Patch(KBXCollection,ThisItem,{Submitted:true});
'PDFconvert-2'.Run('PDFconvert-2'.Run("<!DOCTYPE html>
<p><img src="&JSON(CollectGallery.Selected.Image5, JSONFormat.IgnoreBinaryData)&"</p>
<p> </p>.....

Patch(KBX_Jobcard, Defaults(KBX_Jobcard),{Title: CollectGallery.Selected.Title,Date: CollectGallery.Selected.Date,Image1: CollectGallery.Selected.Image1,Image2: CollectGallery.Selected.Image2,Image3: CollectGallery.Selected.Image3,Image4: CollectGallery.Selected.Image4.....

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WarrenBelz 154,447 Most Valuable Professional on at

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Hi @Matt383 ,

In the first code, there is a Flow involved and you are sending JSON (I assume Base64 Text) to it, so I suspect the issue lies there. In the second code what type of fields are you patching the images to?

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Matt383 407 on at

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Hi Warren, yes, first code uses base64 and the flow converts data from collection into html.
The 2nd code is to patch to sharepoint. In regards to the image, this is a sample of what is transferred over to sharepoint.
data&colon;image/jpeg;base64,/9j/4AAQSkZJRgABAQAASABIAAD/4QBYRXhpZgAATU0AKgAAHRUUdsl4Afm...

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WarrenBelz 154,447 Most Valuable Professional on at

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Hi @Matt383 ,

So the second one is saving Base64 text into multi-line text fields? I assume the first one (you mentioned HTML) is embedding these in a PDF generated from OneDrive? Which one is not working (I assume the second one).I must admit we are on a very different path to what I imagined from your initial post and I cannot guarantee I will have anything useful to explain your issue (which I have never encountered).

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Matt383 407 on at

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Hi Warren, i had a look in the flow history and think i may of identified the issue;
The html content length cannot be greater than 2 MB
InnerExceptionMessage:

Do you know of a way around this without using encodian?

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WarrenBelz 154,447 Most Valuable Professional on at

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Hi @Matt383 ,

Yes that would do it as well (I strike it doing PDF files on pictures), but there is no alternative I know of (and this has been confirmed in a couple of videos I have seen, particularly one from @RezaDorrani )

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Digital 1,207 on at

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I have run into this problem in the past when embedding images in a PDF using Flow. It seems crazy there is only a 2MB limit.

I got around it by using the Power Apps print screen to display a printer friendly view with embedded images. You can then use the browser to print to PDF.

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-print

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