Overlay PDFs
Overlay one PDF on another with transparency and positioning control.
Drag & drop files here, or click to select
Drag & drop files here, or click to select
Use cases:
- Place content on letterhead
- Fill forms
- Apply watermarks
- Compare two documents
How to Overlay PDF Files Online
Select the template PDF to use as the background layer.
Upload the overlay PDF to place as the foreground layer.
Adjust transparency values, offsets, and scale coordinates.
Export the blended pages as a new combined PDF document.
Why Overlay PDFs with SonuPDF?
Positioning Parameters
Position foreground templates precisely with custom scale, height, and width offsets.
Opacity Controls
Blend background details by configuring custom opacity levels for the overlay layers.
Smart Propagation
Apply the overlay on one page or repeat it systematically across the entire file.
Local Compilation Safety
The layer blending calculations take place on your local CPU to guarantee privacy.
Frequently Asked Questions
It is perfect for combining stationery backgrounds, blueprints, letterheads, or structural watermarks.
Yes. The coordinate settings let you shrink, enlarge, or shift the foreground layer layout.
No. The tool runs locally in your browser so your confidential files are never exposed.
Yes. The layout scales layers proportionally to match the target page width and height.