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Chemical Drawing Atlas

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ChemSemaThis feature in other tools

Lasso select and transforms in ChemSema

Selection and flip controls in the toolbar.

Selection and flip controls in the toolbar.
What we checked
Lasso or free selection plus rotate, flip and resize.
Result
Yes, according to the manual: Freehand selection, rotation, flipping, and resizing. Yes, according to the manual. Freehand selection, rotation, flipping, and resizing.
Version we tested
Web build 8e6f995 (2026-09-…, on macOS 27.0.1 arm64
Manual
github.com

Open the full pageManual