A watermark is text or a logo overlaid on an image to indicate ownership and discourage unauthorized use. Adding a watermark to your photos, illustrations and product images is one of the most effective ways to protect your work online without preventing viewers from seeing it. ConvertFree.net's Image Watermark tool lets you apply a professional text watermark in seconds — completely free.

Customization Options

  • Watermark text: Use your name, website, copyright symbol, brand name, or any text up to 80 characters. Example: © JohnDoe 2026 or www.yourbrand.com.
  • Position: Choose from bottom-right, bottom-left, bottom-center, top-right, top-left, or diagonal center. Bottom-right is the industry standard for photography.
  • Font size: Scale from 10px to 200px depending on your image dimensions. For a full-size photograph, 60–80px is typically appropriate.
  • Opacity: Control transparency from 10% (barely visible) to 100% (fully opaque). A 50–70% opacity is usually the sweet spot — visible enough to claim ownership, subtle enough not to distract from the image.
  • Color: White (#ffffff) works well on most images. Use a dark color (#000000 or dark grey) for light-colored photos.

Best Practices for Watermarking Photos

  • Place watermarks at the edge of the image where they are harder to crop out.
  • For product photography, center diagonal watermarks are more difficult to remove.
  • Make your watermark visible but non-distracting — 40–60% opacity is usually ideal for most content.
  • Include your website URL so viewers can find the source if they share the image.
For PDF watermarks: Use the Watermark PDF tool to add text watermarks across every page of a document.

Privacy and Security

Your original image is processed on ConvertFree.net's own server and is never shared with third parties. Both the original and watermarked output are permanently deleted within 5 minutes of processing.