PDF Background

Quick answer: Add a solid color or image background to every page — template tints, covers, branding. Open PDF 添加背景 — everything runs locally in your browser, and files never leave your device.

Steps

1. Upload the PDF to the Background tool.
2. Pick a color or upload a background image; set opacity.
3. Choose the page range.
4. Download.

Important notes

• Browsers skip background colors when printing unless "Print backgrounds" is checked.
• Transparent PNG backgrounds make clean template underlays and stamp positions.
• Opacity below ~30% keeps body text comfortably readable.

Common questions

Can I remove a background later? Keep the original and re-export an un-backgrounded copy — stripping backgrounds is not supported.

Will it cover the text? No, backgrounds render beneath the text layer.

Workflow tips

For branded documents, keep the background asset minimal: a light tint or a thin border image reads professionally, while full-bleed dark backgrounds hurt both printing and on-screen readability of body text.