Canon EOS 90D Instruction Manual page 668

Sending Images to a Web Service
Sending Images that Match the Search Conditions
Send all the images that match the search conditions set in [Set image
search conditions] at once.
For [Set image search conditions], refer to "Filtering Images for Playback"
( = 385).
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1
Press <0>.
2
Select [Send all found].
3
Select [Size to send].
On the displayed screen, select an

image size.