PDF Page Size

Quick answer: Normalize mixed-size PDFs to a single standard — A4, Letter, or custom. Open PDF 调整页面尺寸 — everything runs locally in your browser, and files never leave your device.

Steps

1. Upload the PDF to the Page Size tool.
2. Choose the target size and strategy: scale-to-fit or center-crop.
3. Preview every page type for cropped content.
4. Download.

Important notes

• Mixed portrait/landscape documents need scale-to-fit, or landscape tables get cropped.
• Enlarging small pages softens content slightly — check scan resolution first.
• Print shops ask for uniform sizes; normalizing avoids their auto-scaling surprises.

Common questions

Can I change just one page? Yes — page ranges work, including flipping a single page to landscape.

Does scaling affect text? Scale-to-fit scales everything together; canvas-only mode changes paper size without touching content.

Workflow tips

Before normalizing, check whether any page is intentionally non-standard (fold-out maps, oversized charts) — auto-scaling those pages to A4 shrinks them into illegibility, and they are better left as-is or handled separately.