Does ReflowPDF support the CSS property font-synthesis-small-caps?

pixel-exact: Our rendering of the example is identical to Chrome's, pixel for pixel — no further apart than the example's own noise floor. Measured against Chrome on 1 example; the renders and the difference maps are published at https://reflowpdf.com/conformance/css/font-synthesis-small-caps.

Dataset 20261011-0550-f160c57 · measured 2026-10-11 05:50 UTC

font-synthesis-small-caps

✓pixel-exactcss-fonts-4

Our rendering of the example is identical to Chrome's, pixel for pixel — no further apart than the example's own noise floor.

What the specification says

Initial value: auto
Applies to: all elements and text
Inherited: yes
Percentages: N/A
Computed value: specified keyword
Syntax: auto | none

css-fonts-4 definition

The measurements

One example. Each is one declaration on a small page, drawn by Chrome and by our engine. Drag the handle to wipe between them.

font-synthesis-small-caps:none✓pixel-exact

Chrome of this test — Left of the line is our rendering; right of it is the chrome. Drag, or focus the slider and use the arrow keys.

Our render of this test — Left of the line is our rendering; right of it is the chrome. Drag, or focus the slider and use the arrow keys.

645 pixels differ from Chrome, the largest by 3 of 255 on one channel.

Differing pixels: 645
Max channel delta: 3

the example page

Which values were measured

“Supported” on one example means “supported at the value we tried”. The property’s declared grammar has 2 branches; 1 of them carry a measurement. The publishing ceiling is 12 examples per property — a branch past it is left out by our choice, not by accident.

Value	Measured
auto	not measured
none	✓pixel-exact

Measured against Chrome 148.0.7778.96 on 2026-10-11, with up to 40 candidate values tried per property. All properties · How the measurement works

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