Re: how do I save pen inputs to cds and read the image field to a image object again
Hi @PivotMananger ,
Do you want to update images to CDS and display them in PowerApps?
Firstly, you need to have the permission of reading and writing the Note entity in CDS.
Because all the attachments are stored in this entity.
I've made a similar test for your reference:
1)create an image field in CDS.

2)insert an peninput control
insert a button to update
set the button's OnSelect:
Patch(testmanies,Defaults(testmanies),{Name:"abc",penimage:PenInput1.Image})
//testmanies is my entity name, Name is my required field(please check this, whether you have required field)
3)insert a gallery to display data
set the gallery's Items: entity name
insert an image inside the gallery, set the image's Image: ThisItem.penimage //penimage is my image field name
Then, after I click the button the data submit successfully and the peninput image display in the gallery.

Best regards,