Create or edit an invoice, scroll down and click on the paperclip icon below the Note section
Take a picture or choose an image from the gallery, add Name or Description and press Add
A message may appear to allow Billdu to access to your device, select OK
Images will be added to your invoice and appear in the order they've been added. Images are now part of the invoice
This feature is available only with our mobile app but you can see the images also on the website.