Dear Affinity support team,
when editing SVG files and exporting the result as PNG, we noticed that the PNGs have the pHYs section set:
https://www.w3.org/TR/2003/REC-PNG-20031110/#11pHYs
In our case:
pixel_units: meters
pixels_per_unit_x: 5669
pixels_per_unit_y: 5669
As we use Affinity Designer for designing icons for several applications, this section must not be set (plain pixel grapic). Some controls of our applications (WPF/WinForms) have problems rendering the PNGs (DPI/scaling issues) when the pHYs section is set. We already tried several exporting options. Ideally, we would export as PNG-8 (dithered) with no ICC profiles embedded and without metadata to achieve the smallest possible file size.
Is this a bug or are there any options we missed?
With kind regards,
Kersten