johanna

I think both resample methods work, but resampling twice gives a blurry export when combined with altering the canvas size. And because both resizing the image before export and exporting require resampling, resizing the canvas + resizing the image + exporting = blurry image.
My test image is supposed to be a thumbnail on a website. It's not supposed to be readable, but it's supposed to not look awkward. I can at least myself clearly see the difference between the blurry one and any of the sharp ones, small as they are, and so can my client, who's now happy with the sharper image. All is well and I can continue to use Affinity Photo for exports of this kind.
By the way, the ad is for a medical research fund. A person gave their grand piano to the fund so that the fund could sell it and use the income to sponsor a lot of awesome medical work. The placement of the piano in the lab is of course just meant to grab the reader's attention.

They must have decided that it offered the potential for some key evidence! 

I think both resample methods work, but resampling twice gives a blurry export when combined with altering the canvas size. And because both resizing the image before export and exporting require resampling, resizing the canvas + resizing the image + exporting = blurry image.
My test image is supposed to be a thumbnail on a website. It's not supposed to be readable, but it's supposed to not look awkward. I can at least myself clearly see the difference between the blurry one and any of the sharp ones, small as they are, and so can my client, who's now happy with the sharper image. All is well and I can continue to use Affinity Photo for exports of this kind.
By the way, the ad is for a medical research fund. A person gave their grand piano to the fund so that the fund could sell it and use the income to sponsor a lot of awesome medical work. The placement of the piano in the lab is of course just meant to grab the reader's attention.