Watermarks distinguish documents, indicate status (CONFIDENTIAL, DRAFT), or add branding. Local tools let you add watermarks without sending documents to cloud servers.

Types of PDF Watermarks

Different watermark types serve different purposes—choose based on your needs.

  • Text Watermarks: Words like CONFIDENTIAL, DRAFT, or custom text.
  • Image Watermarks: Logos, stamps, or graphical elements.
  • Diagonal watermarks: Angled across pages for visibility.
  • Tile Watermarks: Repeated pattern across all pages.

"Text watermarks are ideal for document classification—clear, professional, and immediately understood by recipients."

Step-by-Step: Add Watermark to PDF

Follow these steps to add watermarks to your PDF documents without any uploads.

  1. Open Tool: Navigate to pdflocally.com/tools and select watermark tool.
  2. Upload PDF: Drag and drop your PDF file.
  3. Choose Type: Select text or image watermark.
  4. Customize: Set text, font, size, opacity, rotation.
  5. Position: Choose center, corners, or full-page placement.
  6. Apply: Add watermark and download result.
// Watermark addition workflow
const addWatermark = async (pdfDoc, text, options) => {
  const pages = pdfDoc.getPages();
  
  for (const page of pages) {
    const { width, height } = page.getSize();
    
    page.drawText(text, {
      x: width / 2 - 100,
      y: height / 2,
      rotate: options.rotation || 45,
      opacity: options.opacity || 0.3,
      color: options.color,
      size: options.size || 48,
    });
  }
  
  return pdfDoc.save();
};

Watermark Options Comparison

Type Best For Customization
Text Status labels, marks Full
Image Branding, logos Size, opacity
Diagonal Security, status Rotation, position
Tiled Background patterns Spacing, size

Common Watermark Use Cases

  • Document Status: DRAFT, CONFIDENTIAL, FINAL labels.
  • Branding: Add company logos to distributed documents.
  • Security: PROOF marker to prevent unauthorized copying.
  • Date Stamping: Add dates to versioned documents.

Ready to Add Watermarks?

Add text or image watermarks to your PDFs without any uploads.

Add Watermark

Frequently Asked Questions

Can I remove watermarks later?

Text watermarks can be removed if the original text layer is preserved. Image watermarks are harder to remove without affecting underlying content.

Does watermark affect file size?

Minimal impact—text watermarks add negligible size; image watermarks depend on image complexity.

Can I add to specific pages only?

Yes, most watermark tools allow selecting page ranges or specific pages for watermark application.

Is watermark visible when printed?

Yes, watermarks print with the document. Adjust opacity for print visibility.