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SVG Logo Path Uses a Command That SVG Tiny 1.2 Does Not Allow

A path in the BIMI SVG logo uses a command that SVG Tiny 1.2 does not allow, usually the arc commands A and a.

The exact error

path data uses commands that SVG Tiny 1.2 does not allow: A, a (lines 3, 4); replace arcs with curves

What Does “SVG Logo Path Uses a Command That SVG Tiny 1.2 Does Not Allow” Mean?

The d attribute of a <path> is a list of drawing commands. SVG Tiny 1.2 allows move, line, curve and close commands (M, L, H, V, C, S, Q, T, Z and their lower-case forms). It does not allow the arc commands A and a.

The error lists the commands it found and the lines of the paths that use them. A certificate authority can reject a logo with arc commands, even though browsers draw it correctly.

Why Does “SVG Logo Path Uses a Command That SVG Tiny 1.2 Does Not Allow” Appear?

Design tools and SVG optimisers write arcs for circles and rounded corners, because an arc is shorter than the same shape in curves. A schema check of the SVG elements and attributes does not see this, because the commands are inside the value of d.

Less often, the path data has a character that is not a path command at all, for example after a copy and paste.

How Do You Fix “SVG Logo Path Uses a Command That SVG Tiny 1.2 Does Not Allow”?

In your design tool, convert the shapes with arcs to plain paths of curves, then export the logo again as SVG Tiny P/S. If you use an SVG optimiser, turn off the option that converts curves to arcs.

Do not delete the arc commands by hand: that changes the shape.

What Should You Verify After Fixing “SVG Logo Path Uses a Command That SVG Tiny 1.2 Does Not Allow”?

Search the exported file for the letters A and a inside each d value, then validate the logo again. Compare it with the original at a large size to confirm the curves match.

Key Takeaways

  • SVG Tiny 1.2 has no arc commands.
  • Optimisers often write arcs for circles and rounded corners.
  • Convert arcs to curves in the design tool, then export again.
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