PDF Merge & Combine (Client-Side)
Merge multiple PDF documents into a single file directly in your browser with 100% privacy.
Add Text Watermark to PDF Online
Add diagonal text watermarks (e.g., CONFIDENTIAL, DRAFT) across all PDF pages.
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Add Text Watermark to PDF Online
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Process 50+ files simultaneously in full resolution.
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How to Use Add Text Watermark to PDF Online
Select PDF
Upload your document.
Set Watermark
Enter stamp text, font size, and transparency.
Download
Export your secured watermarked PDF.
Useful Tips & Best Practices
- •Try a modest size and opacity so the watermark does not obscure important content. Check the final PDF for overlaps with text and signatures.
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