PDF Merger + Watermark
Combine, optimize & add custom watermark — 100% private, no upload required
PDF Merger
Results
Info
Document Settings & Quality
Watermark Settings
0.30
Watermark will be applied to ALL pages
Adds diagonal semi-transparent text across each page after merging.
PDF Files
Drag & drop PDF files here or click to select
Merge Summary
0 Files
Ready to Merge
Total PDFs Merged:--
Total Original Size:--
Final Merged Size:--
Quality Preset:--
Watermark Applied:--
Download Ready:No
About PDF Merger & Watermark
How It Works
This tool merges, optimizes and adds watermarks directly in your browser using PDF-lib. No files are uploaded — your documents remain private.
Features:
- Merge & Order: Combine multiple PDFs, reorder files.
- Quality Profiles: Original, High, Balanced, or Maximum Compression.
- DPI Control: Reduce embedded image resolution to save space.
- Custom Watermark: Add text watermark (confidential, draft, brand) with adjustable opacity & size.
- 100% Private: All processing happens on your device.
