Layer two PDFs on top of each other
Place a background PDF (e.g. a letterhead or template) behind the content of another PDF. Every page gets the background behind it. Free and local in your browser.
Content PDF
Drop here or click to choose
Files stay on your device — nothing is uploaded
Background PDF (letterhead, template…)
Drop here or click to choose
Files stay on your device — nothing is uploaded
The background PDF is placed behind the content PDF, page by page. If the background has fewer pages it tiles. Works best when both PDFs have the same page size.
Typical use: merge a letterhead template (background) with text content (foreground), or stamp a logo behind every page.
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Your file is processed in your browser and never uploaded.
How does it work?
- 1
Choose the content PDF
The PDF with the actual text or content.
- 2
Choose the background PDF
The letterhead, template or logo to place behind it.
- 3
Combine & download
Download the combined PDF.
Frequently asked questions
Does it work if the PDFs have different page sizes?
The background is scaled to match the content page size. Best results when both PDFs have the same size.
Can I put the background on top instead?
No, the background is always placed behind the content.
What if the background has fewer pages?
The background repeats: page 1 of the background is used for pages 1, 3, 5… (or all pages if it has only 1 page).
Are my files uploaded?
No. Everything happens in your own browser. Your file never leaves your device and is not stored anywhere.
Is it free?
Yes, completely free, without watermark or account. The site is paid for by ads.
Why in the browser?
PDFrust runs entirely in your browser using WebAssembly and modern JavaScript libraries such as pdf-lib and PDF.js. Your file is never sent to a server — all processing happens locally on your device. This means your documents remain private by design, regardless of what they contain. There is no account required, no file size limit, and nothing is stored after you close the tab.
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