How do I attach it?
- A bill: under Attachments, drop the file on Add files and press Attach file. See Record a bill and attach the PDF or photo.
- A payment from the bank: when you record the line, use Attach receipt, shown as Receipt for this payment.
Which files work?
A PDF, or a clear photo in PNG or JPEG. Each file is checked for viruses before it is kept. A file that fails the check, or is another type, is refused.
Is the receipt safe once attached?
Yes. See Are my documents kept as safely as my entries?
Explanation written from the Deline app's own screens and texts (build eba146497 (Deline cf723fe1f)); it has no steps to check.