Skip to main content
ToolNest AI
Free

Watermark PDF

Add text or image watermarks to PDF documents online for free with customizable position, opacity and style.

branding_watermark

Drag & drop your PDF here

or click to browse — PDF only · up to 200 MB

Text watermarkImage watermarkCustom positionOpacity controlBrowser-local

How it works

upload_file

1. Upload

Drop your PDF — a live preview of page 1 appears

branding_watermark

2. Configure

Choose text or image, set style, position and pages

visibility

3. Preview

See the watermark overlaid on your PDF instantly

download

4. Download

Apply and download your watermarked PDF

About Watermark PDF

Upload any PDF and stamp it with a custom text or image watermark. Text watermarks support any message, three font families (Helvetica, Times Roman, Courier), bold, italic, size, color, opacity, rotation, and letter spacing. Image watermarks accept PNG, JPG, or JPEG logos and support resize, opacity, and rotation. Place watermarks at nine positions — center, four corners, top/bottom center, or a fully custom x/y offset. Apply to all pages, first page only, last page only, or a custom page range. Live preview on the first page. All processing runs entirely in your browser using pdfjs-dist and pdf-lib — no files leave your device.

Frequently Asked Questions

Upload your PDF, choose Text or Image watermark, configure the appearance and position, then click Apply Watermark. The watermarked PDF downloads automatically.

Yes. Switch to the Image tab and upload any PNG, JPG, or JPEG image. You can resize, rotate, and set the opacity before applying it as a watermark.

Yes. The default is All Pages. You can also target only the first page, only the last page, or type a custom range such as '1-3, 5, 8'.

Yes. Your file never leaves your device. All processing happens entirely in your browser using pdfjs-dist and pdf-lib — no data is uploaded to any server.

Yes, completely free with no account required and no usage limits.

Related Tools

Add Page Numbers to PDF

Add page numbers to PDF documents online with customizable position, style and numbering.

Organize PDF

Organize PDF pages by reordering, rotating, deleting and duplicating pages in one powerful editor.

Merge PDF

Combine multiple PDF files into a single document in seconds.

Rotate PDF

Rotate PDF pages online for free. Rotate all pages or selected pages by 90°, 180° or 270°.