Follow these steps to add an image or a document to a text box in Qondor, when you do not have a public url to the image or document:
Upload the image or document in Project files and make the file public to get a url
Copy the url to the file
Go to the text box where you want the image or document displayed and place the marker where you want it inserted
For image: on the menu, choose Insert -> Image and paste the url in “Source”
For document: on the menu, choose Insert -> Link and paste the url in "Source"
If you have added an image, adjust the size in pixels or by dragging the corners of the image directly in the text editor.
Note! You cannot delete the project file, as the link or image will no longer be visible where you inserted it.