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Use antialiasing when comparing pdf files #30068

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@jkseppan jkseppan commented May 18, 2025

Render at 600dpi and scale down to 150dpi.

The low-resolution non-antialiased rendering is convenient in that it hides minor font differences, but it can hide actual rendering errors and cause problems. For example, #29392 needs to change multiple baseline files because of minor differences only visible because of the low-resolution rasterisation.

@jkseppan jkseppan force-pushed the pdf-test-resolution branch from 6afa531 to 645322b Compare May 18, 2025 15:26
Perhaps this is causing the EPS failures
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