Optional Online, Required on Paper
The upload is a convenience; the print is the submission.
The portal at visa.gov.bd lists what to have ready and describes the photo as "45mm x 35mm Digital Photo in JPEG format; Maximum size is 300kb (Photo is optional)". People read the word optional and conclude they do not need a photo. That is the wrong conclusion.
It is optional because the online step is not the submission. You fill the form, print it, and take the printed form with your documents and fee to the nearest visa office or Bangladeshi mission — and the printed form, D.I.P Form-4, has a box in its top-left corner labelled "Applicant’s Photograph Measuring 45 mm x 35mm".
So the upload saves the counter some typing. The photograph you physically stick on the form is the one that matters, and skipping it means being turned away.
