How to watermark images for free | Add text, logos, and URLs in your browser

A watermark is a display that leaves information such as the author's name, shop name, URL, etc. on an image. Although it does not completely prevent copying, it helps communicate the source of the image and the terms of use.

To get started for free, simply open an image, add text or logo, adjust position, size, and transparency, and save.

Purpose of watermarking

Adding watermarks to images has the following main purposes:

• Indicate author or shop: Make it clear who the image was created or photographed by.
• Make it easier to understand the source of images: When images are spread on SNS, etc., leave an access route to the original source (website or account).
• Preventing theft and unauthorized use of product photos: This helps prevent third parties from using photos as they are on their own product pages at online shops, marketplace apps, etc.
• Leave the author's name and social media ID on work samples: By adding a signature to your portfolio or sample images, you can prevent third parties from claiming your work and help convey copyright awareness.
• Indicate the URL and terms of use on the image: By including reprint rules and text such as "SAMPLE", conditions for secondary use are visually indicated.

*These do not completely prevent unauthorized storage or secondary use, but they function as an appropriate check and information transmission.

3 steps to watermark for free

With MistSeal, you can add watermarks using just your browser in the following 3 steps.

1. Open image

Load the target file by clicking the "Open image" button on your PC or smartphone browser. Image data is not sent to a server and is processed securely on your device.

2. Add author name, shop name, URL, logo

Select "Text" or "Logo/Watermark" from "Additional Layer" in Advanced mode.

3. Adjust position, size and transparency and save

Select the text or logo on the canvas and drag to position it. Adjust "Size" and "Opacity" using the slider or numerical input, and finally press "JPG output" to save.

Where should I put the watermark?

The recommended position and style for placing the watermark will vary depending on the purpose.

• Usage: Recommended method of insertion

Easy to read and non-intrusive settings

To ensure that it works effectively and does not affect the original look of your images, please keep the following points in mind:

• Do not overlap the main character too much: Avoid placement that greatly blocks the face of the person in the illustration or the core parts of the product, and adjust the position so that it does not obstruct the view.
• Choose a color that doesn't blend in with the background: If the background is white, choose a contrasting color such as gray or black, or if the background is black, use white or a bright color.
• Don't lower the transparency so much that it becomes unreadable: Making it transparent will blend in with the image, but if you make it too thin, the text will not be recognizable and will no longer serve as a source indicator.
• Avoid too small characters and URLs: Ensure that the size is appropriate so that it does not get crushed when reduced.
• Full-cover tile watermark only when necessary: Full-cover tile watermarks provide the most powerful display, but they reduce the original beauty and legibility of the image, so they are best suited for special purposes such as publishing samples.
• Do not include too many logos and descriptions in product images: If you include too many watermarks or text, it will be difficult to understand the condition of the product, which should be conveyed.

Watermark and logo functions that can be used with MistSeal

MistSeal has the following powerful tools available in the free version and some premium version (subscription) features to suit your needs.### Basic functions that can be used for free

• Text watermark (text layer): You can freely change the font, size, color, and opacity and place the text.
• Add a logo image: You can overlay your own logo mark (PNG, etc.) and adjust the size and opacity.
• Easy adjustment of position, size, and transparency: Can be specified using intuitive drag operations or sliders on the canvas.
• Save presets (free version has a limit): Save the watermark placement and settings you have created, and recall them with one click next time.

Advanced features available with Premium

• Tile watermark (full watermark): Text is automatically placed diagonally across the entire image, and the opacity and spacing can be adjusted in detail.
• Batch application to multiple images & ZIP export: You can automatically overlay the same watermark or logo on many images at once and download them all in ZIP format.

How to choose when adding a watermark to an image for free

If you want to use it without adding a watermark app or want to use the same settings on both your PC and smartphone, image processing that can be completed in a browser is suitable. If the purpose of watermarking an image is to display the author's name, shop name, social media ID, or URL, it is sufficient to use either a text watermark or a logo watermark.

On the other hand, the functions you need will change depending on whether you want to process just one image or if you want to add the same logo to all product images and work samples. If you want to use the same settings for multiple images, you can make it easier to match the appearance by creating presets for the watermark position, font size, and opacity and then applying them all at once.

Examples of characters to be included in watermarks

• Illustration: Author name, social media ID, portfolio URL
• Product images: shop name, logo, short URL
• Sample for distribution: `SAMPLE`, reprint conditions, publisher
• social media posting: short account name or series name

A watermark is an aid to indicate the origin of an image. Since it does not completely prevent unauthorized reproduction or storage, it is combined with measures such as preparing a separate size for publication and hiding unpublished parts as necessary.

Frequently asked questions

Can watermarks alone prevent unauthorized reproduction?

No, watermarks alone cannot completely prevent images from being downloaded or reprinted. However, since it shows that the author is clear, it is useful as a deterrent against unauthorized diversion, and as material for claiming rights in the event of reprinting.

How dark should I make my watermark?

We recommend keeping the opacity low (around 10% to 30%) so as not to block the entire image, but keeping it dark enough to be recognizable as text or URLs.

Can I use a logo image?

Yes, we do. You can add images such as PNG and JPEG from the "Logo image" file input field, and adjust the placement size and transparency on the screen.

Add the author's name and logo to prepare the image for publication.

Is it better to add a watermark for free, an app or a browser?

If you want to quickly process just one piece, either is fine. If you want to use the same settings on multiple devices, want to start without installing, or want to add a logo to multiple images at once, tools that can be used in a browser are easy to use.