Add Watermark PDF
Add text watermarks to PDF documents
PDF file
Tap pages to select them, or type page numbers in the field.
Your file is uploaded to Toolsvana for processing.
Result
Choose a PDF to begin.
Choose a PDF to begin.
About Add Watermark to PDF
Our free Add Watermark to PDF tool lets you overlay custom text watermarks on any PDF document online. Protect your documents with "CONFIDENTIAL" stamps, mark drafts, add copyright notices, or brand your PDFs with complete control over text, opacity, position, and rotation angle.
PDF watermarking marks who owns a document and what state it is in. A DRAFT stamp on a report sent for review, CONFIDENTIAL across a contract shared with a buyer, or a copyright line on a portfolio PDF tells readers how the file may be used and discourages unauthorized copying.
This online PDF watermark tool supports documents up to 50MB, and uploaded files are deleted automatically within 24 hours. You can apply watermarks to all pages at once or select specific pages, and the tool preserves the original quality and formatting of your PDF content throughout the process.
Key Features
- Add any custom text as a watermark (CONFIDENTIAL, DRAFT, copyright, company name, etc.)
- Adjustable opacity from 10% to 100% for subtle or prominent watermarks
- Full rotation control from 0 to 360 degrees for diagonal or custom angles
- Apply watermarks to all pages or select specific pages only
- Visual page selector with thumbnail previews for targeted watermarking
- Preserves original PDF quality, text, images, and interactive elements
- Fast processing, even for large multi-page documents
- Drag-and-drop file upload with real-time progress tracking
- No output watermarks or branding added by the tool itself
- Supports PDF files up to 50MB in size
How to Use
- Upload your PDF: Drag and drop your PDF file or click "Browse PDF" to select a file from your device.
- Enter watermark text: Type the text you want to appear as a watermark (e.g., CONFIDENTIAL, DRAFT, your company name).
- Adjust opacity & rotation: Use the sliders to set the desired transparency level and rotation angle for your watermark.
- Select pages: Choose to apply the watermark to all pages or select specific pages using the page selector.
- Process & download: Click "Add Watermark" and download your watermarked PDF once processing is complete.
Use Cases
- Confidential documents: Mark sensitive business documents, financial reports, and internal memos to prevent unauthorized sharing.
- Draft reviews: Stamp documents with "DRAFT" to clearly indicate they are not final versions during the review process.
- Copyright protection: Add copyright notices to creative works, photographs, and published content to assert ownership.
- Legal documents: Watermark legal briefs, contracts, and evidence files to maintain chain of custody and document integrity.
- Company branding: Add your company name or logo text to outgoing documents for consistent brand presence.
- Educational materials: Mark teaching resources and exam papers to prevent unauthorized distribution.
- Real estate listings: Watermark property documents and floor plans shared with potential buyers.
- Sample documents: Mark product samples or preview documents with "SAMPLE" to distinguish them from final versions.
Frequently Asked Questions
Can I remove a watermark after adding it?
The watermark is permanently embedded into the PDF. We recommend keeping a copy of your original file before adding watermarks so you always have the unwatermarked version.
What opacity level should I use?
For most use cases, 20-40% opacity works well as it makes the watermark visible without obscuring the document content. Higher opacity is better for strong deterrence.
Does the watermark affect text selection?
No, the watermark is overlaid on the PDF without affecting the underlying text layer. Users can still select and copy text from the document.
What is the maximum file size supported?
The tool supports PDF files up to 50MB in size, which covers most standard documents and large multi-page files.
Tips & Best Practices
- Use diagonal rotation (45 degrees): This is the most common and effective angle for watermarks, as it crosses the content area and is harder to crop out.
- Keep opacity between 20-40%: This range makes the watermark clearly visible while keeping the document content readable.
- Use short, impactful text: Single words or short phrases like "CONFIDENTIAL", "DRAFT", or "DO NOT COPY" are most effective.
- Always keep the original file: Save a copy of your unwatermarked PDF before adding watermarks, as the process is permanent.
- Test on one page first: Use the specific pages option to test your watermark settings on a single page before applying to the entire document.
- Consider your audience: Use lower opacity for documents that need to remain highly readable, and higher opacity for stronger deterrence.