Design template online關於「Canva a3」標籤，搜尋引擎有相關的訊息討論：
A series size guide - Canva's Design WikiA series paper sizes ; A3, 29.7 × 42 cm ; A4, 21 × 29.7 cm ; A5, 14.8 × 21 cm ; A6, 10.5 × 14.8 cm.缺少字詞： gl= | 必須包含以下字詞：gl=Free templates | CanvaBrowse through our professionally designed selection of free templates and customize a desi