PDF Watermark - Add Text Watermarks to PDF Online

Add custom text watermarks to PDF files. Control opacity, rotation, position, and apply to specific pages. No uploads, completely private.

1. Upload PDF

Drop a PDF file here, or

2. Watermark Settings

Watermark Text

Font Size: 48pt

Opacity: 30%

Rotation: 45°

Color

Position

Apply To

Quick Tips

Lower opacity (20-40%) for subtle watermarks
45° rotation works well for diagonal stamps
Tiled position provides full-page coverage
Use "DRAFT" or "CONFIDENTIAL" for status
Preview updates as you adjust settings

How It Works

Upload PDF
Select your document

Customize
Set text, style, position

Preview
See real-time results

Download
Save watermarked PDF

Security: Only process files from sources you trust. All processing happens locally in your browser.

PDF Split - Extract Pages from PDF Docum…

PDF Page Numberer - Add Page Numbers to …

PDF Page Reorderer - Rearrange PDF Pages…

PDF Page Extractor - Extract Pages from …

PDF Metadata Scrubber - Remove PDF Prope…

View all Pdf editors →

Frequently Asked Questions

A watermark is text or an image overlaid on PDF pages to indicate ownership, status, or authenticity. Common examples include 'CONFIDENTIAL', 'DRAFT', copyright notices, or company names. Watermarks can be visible or transparent.

Watermark PDFs when sharing drafts, protecting copyright, marking confidential documents, branding client deliverables, or indicating document status. Watermarks deter unauthorized distribution and clearly identify document ownership or restrictions.

Yes. The opacity slider lets you adjust transparency from 0% (invisible) to 100% (fully opaque). Lower opacity (20-40%) creates subtle background watermarks, while higher opacity (70-100%) makes text clearly visible for warnings or status indicators.

Rotation tilts your watermark. 0° is horizontal, 45° creates a diagonal stamp, and 90° is vertical. Diagonal watermarks (30-60°) are popular for draft markings because they're noticeable without obscuring content.

Choose from 9 preset positions (center, corners, edges) or tile the watermark across the entire page. Center is ideal for stamps, corners for logos, and tiled for security watermarks that cover the full document.

Yes. Apply watermarks to all pages, the first page only, or specific page ranges. This lets you watermark cover pages differently than internal pages, or mark only certain sections of large documents.

Watermarks signal ownership but don't prevent copying or editing. They're a visual deterrent, not encryption. For stronger protection, combine watermarks with PDF passwords, DRM, or legal copyright statements.

Yes. Watermarks added with this tool are part of the PDF content layer and can be removed with PDF editing software. For tamper-resistant watermarks, use server-side tools that flatten or encrypt content.

Check opacity (increase above 20%), ensure text isn't white on white backgrounds, verify font size is large enough, and confirm the watermark isn't behind page content. Try adjusting color or position.

No. Watermarking adds a text layer without modifying original images or content. File size may increase slightly due to the added watermark data, but visual quality of the underlying document remains unchanged.

Related Tools