Complete guide to using PDF Background — a free online tool by akousa.net.
Get started in seconds — no signup required
The PDF Background tool composites a custom background layer behind the existing content of every page in a PDF document, supporting solid colors, JPEG/PNG images, and PDF template files as background sources. Adding branded backgrounds, letterhead, or security patterns to PDFs is standard practice in corporate communications, certificate generation, and confidential document marking. The opacity slider lets you create subtle watermark-style effects or bold full-opacity backgrounds. Your files never leave the browser during processing.
Works directly in your browser — no downloads needed
All processing happens locally — your data never leaves your device
Download your results in multiple formats
Fully responsive design works on any device
Upload your foreground PDF, then choose a background type: solid color (pick any hex color), image (JPEG or PNG up to 10 MB), or PDF template. For image and PDF backgrounds, adjust the opacity slider (0-100%) for the desired transparency effect. Optionally restrict the background to a specific page range. Click Apply Background to composite the layers and download the resulting PDF.
PDF Background is a free, browser-based tool that runs entirely on your device — no signup, no uploads, and no tracking. Built for speed and privacy, it gives you instant results without leaving the page.
Developers, designers, students, and everyday users rely on this tool for quick, accurate results. It's especially popular among people who need a reliable utility without installing software or signing up for an account.
Looking at alternatives to PDF Background? Here's how we compare to similar tools available online.
| Feature | akousa.net | Other tools |
|---|---|---|
| Price | Free forever | Often paid or freemium |
| Privacy | Runs in your browser | Data sent to servers |
| Signup | Not required | Account often required |
| Ads & tracking | None | Ads and trackers common |
| Usage limits | Unlimited | Daily or file-size limits |
Add PDF Background to your own website with a single line of code — free, no signup required.
Get embed codePDF Background is also available as a developer API for use in your own apps and workflows.
View API docsConvert images to Base64, data URIs, HTML tags, and CSS backgrounds.
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