How to Add a Watermark to Your Images

Add watermark to images online for free using ConvertKr's image watermark tool

If you share images online, watermarking is one of the simplest ways to protect your work and build brand recognition. A well-placed watermark discourages unauthorized use while letting viewers know who created the image. This guide covers everything from choosing the right watermark type to positioning it effectively so it protects your work without ruining the viewer’s experience.

Why You Should Watermark Your Images

Watermarking is not just about preventing theft. It serves several practical purposes that benefit photographers, designers, businesses, and content creators.

  • Deter unauthorized use: A visible watermark makes it harder for someone to pass off your work as their own. While it will not stop determined thieves, it deters casual image stealing.
  • Brand recognition: When your watermarked images are shared across the internet, each one becomes a small advertisement for your brand. Viewers learn to associate your style with your name or logo.
  • Proof of ownership: If someone does use your image without permission, a watermark provides clear evidence that you are the original creator. This is valuable if you ever need to file a copyright claim.
  • Professional presentation: Client proofs and portfolio previews with watermarks communicate that the images are samples, not final deliverables. This sets clear expectations about licensing and usage rights.

Text Watermarks vs Image Watermarks

There are two main approaches to watermarking, each with its own strengths. Choosing the right one depends on your goals and your existing brand assets.

Text Watermarks

A text watermark is simply your name, business name, website URL, or a copyright notice overlaid on the image. Text watermarks are easy to create because you do not need a pre-made logo file. You can customize the font, size, color, and opacity directly in the watermarking tool. Text watermarks work well for photographers, writers, and anyone who wants a simple, clean mark on their images.

Image Watermarks

An image watermark uses your logo or a custom graphic as the overlay. This approach produces a more polished and branded result, especially if you have a well-designed logo. For best results, prepare your logo as a PNG file with a transparent background. This ensures the watermark blends naturally with the underlying image regardless of its colors.

How to Add a Watermark Step by Step

The ConvertKr Watermark Tool lets you add both text and image watermarks without installing any software. Your images are processed entirely in your browser, so they never leave your device.

Step 1: Upload Your Image

Open the watermark tool and upload the image you want to protect. You can also upload multiple images to apply the same watermark to an entire batch at once. The tool supports JPG, PNG, WEBP, and other common formats.

Step 2: Choose Your Watermark Type

Select whether you want a text watermark or an image watermark. For text, type your desired text and choose a font, size, and color. For image watermarks, upload your logo or graphic in PNG format with a transparent background.

Step 3: Adjust Position and Opacity

Drag the watermark to your preferred position on the image, or use the preset positioning options (center, bottom-right, bottom-left, etc.). Adjust the opacity slider to control how visible the watermark is. A typical range is 30-50% opacity, which keeps the watermark readable without dominating the image.

Step 4: Download Your Watermarked Image

Preview the result and download your watermarked image. The original file remains unchanged, so you always have a clean version in your archive.

Positioning Your Watermark Effectively

Where you place your watermark matters. The position determines how well the watermark protects the image and how it affects the visual experience.

Center Placement

A centered watermark provides the strongest protection because it is difficult to crop out. However, it also has the greatest visual impact on the image. Use center placement for client proofs and preview images where you want to prevent unauthorized use of the full image.

Corner Placement

Placing the watermark in a corner (typically bottom-right) is the most common approach. It is less intrusive and preserves the viewing experience while still marking the image as yours. The downside is that corner watermarks can be cropped out relatively easily. To mitigate this, place the watermark slightly inward from the edge.

Tiled Watermarks

A tiled or repeated watermark covers the entire image with a pattern of your watermark text or logo. This provides maximum protection and is nearly impossible to remove completely. Tiled watermarks are ideal for stock photography previews and client proof galleries. Set the opacity low (15-25%) so the watermark is visible but does not overwhelm the image content.

Best Practices for Watermarking

A poorly executed watermark can hurt your brand more than it helps. Follow these guidelines to create watermarks that protect your work while looking professional.

  • Keep it subtle: An aggressive watermark draws attention away from your image and can make your work look less professional. Aim for a watermark that is noticeable when you look for it but does not distract from the content.
  • Use consistent branding: Stick with the same watermark style across all your images. Consistent placement, font, and opacity build recognition over time.
  • Match the watermark to the image: A white watermark disappears on light areas of an image. Use a dark watermark on light images and a light watermark on dark images. Alternatively, add a subtle shadow or outline to your watermark so it remains visible on any background.
  • Always keep unwatermarked originals: Store your original, clean images in a separate archive. You will need them for prints, licensed uses, and any situation where a watermark-free version is required.
  • Size it appropriately: A watermark that is too small is easy to remove and hard to read. A watermark that is too large overwhelms the image. As a general rule, the watermark should be roughly 10-20% of the image width.

When Not to Watermark

Watermarking is not always the right choice. There are situations where going without a watermark makes more sense.

  • Final client deliverables: When a client has paid for images, deliver them without watermarks unless your contract specifies otherwise.
  • Social media posts on your own accounts: Watermarks on your own social media posts can look unprofessional and reduce engagement. Your profile name already credits you as the creator.
  • Images you want to go viral: Watermarks can discourage sharing. If your goal is maximum reach, a watermark-free image gets shared more freely.
  • Low-resolution previews: If you only share low-resolution versions of your images online, the resolution itself is a form of protection. A 600-pixel-wide image cannot be printed or used in high-quality reproductions.

Watermarking is a valuable tool in any creator’s workflow. With the right approach to placement, opacity, and style, you can protect your images effectively while maintaining a professional appearance. Try the free watermark tool to start protecting your work today.