Printing Tips That Save Paper
Double-sided, without the upside-down backs
Turn on “Duplex order” above and the PDF grows to four pages: two weekly spreads, ordered for manual duplex. Print pages 1–2, take the stack straight back to the tray without re-sorting, then print pages 3–4 on the backs. In the printer dialog, choose “Flip on long edge” for portrait inserts and “Flip on short edge” for landscape ones. The wrong flip direction is the number one reason backs come out upside down, so run a single-sheet test before printing a whole month of inserts.
A4 vs US Letter — never “Fit to page”
A4 (210×297mm) and US Letter (8.5×11in) differ by about 6mm in width and 18mm in height. If your printer silently scales an A5 insert to “Fit”, the margins drift and the punch marks no longer match your rings. Always select “Actual size” or 100% scale, and use the crop marks — not scaling — to adapt a small insert to a bigger sheet of paper.
Punching holes that line up
Six-ring planners (A5, Personal, Personal Wide, A6, Pocket) use two groups of three holes; disc-bound planners (Happy Planner Classic and Mini) need a mushroom-shaped disc punch — a round hole punch will not work. The marks on your PDF sit 3.2mm from the left edge: align your punch to the printed circles, punch one test page, and check it inside your binder before punching the whole stack.
双面打印，不再印倒背面
勾选「双面页序」后，PDF 会生成 4 页（两份对开页），页序专为手动双面设计：先打印第 1–2 页，把纸叠原样放回纸盒，再打印第 3–4 页作为背面。打印机对话框中，竖版内页选「长边翻转」，横版内页选「短边翻转」——翻面方向选错是背面印倒的头号原因。批量打印之前，请先用一张纸测试。
A4 还是 US Letter？千万别点「适应页面」
A4（210×297mm）与 US Letter（8.5×11in）宽度差约 6mm、高度差约 18mm。如果打印机悄悄把 A5 内页「缩放以适应」，页边距就会漂移，打孔标记也会和活页环错位。请始终选择「实际尺寸」或 100% 缩放；小尺寸内页印在大纸上时，按裁切线裁剪，而不是靠缩放。
如何打出对得齐的孔
六孔活页本（A5、Personal、Personal Wide、A6、Pocket）是两组三孔布局；圆盘本（Happy Planner Classic / Mini）必须使用蘑菇形圆盘打孔器，普通圆孔打孔器不行。PDF 上的标记距左边缘 3.2mm：把打孔器对准印刷圆圈，先打一张测试页，装进本子确认无误后，再整叠打孔。