Location of PDFs created using Office Lens?

iPhone 6 with Office Lens (2.19).

Workflow:

  • Take picture
  • in “save as” choose PDF
  • on the next screen say “save to phone” (DE Telefonspeicher) rather than “OneDrive”

Question: How can I access my saved PDFs? I can’t find them in the Gallery app, not in “Files” (which shows iCloud files) and not in OneDrive either. Where are my files stored?

Hint: The “options” menu does not allow to select a place to save the PDFs.