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Frequent Visitor

Problem retrieving full size image from CDS

Hi together,


I have a problem retrieving pictures from CDS. They are all reduced to 144x144 pixel. Any help on this would be highly appreciated. Here is what I've done so far.


- I built an app where I can take a picture of a document together with some further information on that picture. (Picture is still in full size)

- I store everything from PowerApps to CDS using patch-function (works fine)

- I open a gallery showing all pictures incl. data entered. (I can see the picture, but only limited resolution)

- I built a flow that should retrieve picture and store it to OneDrive. (file stored on OneDrive has only resolution of 144x144 pixels.


I could find that CDS stores a thumbnail in that format. It seems that I always load the thumbnail.... but cannot get the full size picture. I read that I could use an URL to get the fullsize image. Unfortunately URL is not provided within the data I can read from flow (only entityimage and entityimageid). URL should additionally contain a timestamp as stated  in the example provided by MS:{ECB6D3DF-4A04-E311-AFE0-00155D9C3020}&timestamp=635120312218444444


Anyone an idea? 


Many thanks in advance





Frequent Visitor

Sorry, here a pic from the flow I created 



Frequent Visitor

Hi Martin, 


My solution for photos in CDS 2.0 is to save the base64 string. Create a field with Data type "Multiline text" and Max Length 1000000. You do not need any convert function - non-image fields convert imcoming photos into base4 string automatically by itself. 


Please note, this solution is part of my test/training app. I did not implement it into my productive apps yet. Therefore, I do not know how stable saving of strings with length 1000000 is in production.  


Kind regards 


Hi Lars,


many thanks. I'll give it a try and will post results soonest.


I realize this is an older post, but we just released a preview for enhanced image support. It is available for canvas now and model soon. See these blog posts for more information.

Frequent Visitor

You need to get the full size of the picture, in REST, you can use :

GET /api/data/v9.1/<entity-type(id)>/<image-attribute-name>/$value?size=full

for example :

[Organization URI]/api/data/v9.1/accounts(C0864F1C-0B71-E911-8196-000D3A6D09B3)/myentityimage/$value?size=full

Frequent Visitor



i know this post is a few days old by now, but maybe you or others still have that issue. 

I came across the "Get file or image content" Action in Power automate. 

After setting the Item ID, make supe you set the "image size" to: full. 

By default, you only get the thumbnail, which is 144x144px. 


I hope that resolves your Issue, 

if it does, please accept it as a solution 🙂


Frequent Visitor

@ConstantinSeide hello! I am not able to find that action.. could you please confirm that it still exists? Thanks!

Frequent Visitor

Hello @quetzal01 , 

in the meantime there is another action, that does the same thing: 


"Download a file or an image". 
Hope that will do the trick for you. 

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