Photo Watermark - WaterStamp
Batch Watermark Photos & Video
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
WaterStamp allows you to add watermarks to videos, illustrations, photos, and other images.
You can include copyright text, credit text, and brand logos to clearly indicate ownership of your content.
Completely free with no registration or login required.
— Features —
• Single text watermark
• Wallpaper style watermark
• Adjust text colour, size, spacing, and transparency
• Outline text effect for natural blending
• Over 500 fonts
• Freely customisable colours
• Add your own logos and images as watermarks
• Image format conversion (JPEG, PNG, HEIC, WEBP)
• Image compression
• Automatic removal of Exif metadata
• Batch processing for multiple photos
• Animated watermarks for videos
— New Features —
■ Watermark Studio (version 4.0.0)
Create original watermark images in the app.
Ideal for multi-line messages like "Do Not Repost" and "No AI Training."
Save and reuse your watermarks anytime.
■ Free Positioning Mode
Press and hold in Single Style mode to freely resize and reposition your watermark.
■ Special Fonts for AI Watermark Removal Resistance
Dot patterns and random rainbow colours help make AI detection more difficult.
— About Image Handling —
All processing is done entirely on your device.
Your content is never uploaded or shared.
more • Minor metadata updates
• Improved ad display
5.4.2 25 Jul
• Minor App Store metadata updates
The previous version (5.4.0) included the following improvements:
• Added Beat Type options to the Beat and Beat + Warp animated watermark effects
• Improved the font selection screen UI
I've been focusing on the app a bit too much lately, so unless a critical bug comes up, I plan to wait at least three weeks before the next update.
For the next release, I'm considering either adding more fonts or allowing you to save custom watermark layouts and positions.
If there's another feature you'd like to see, or if you'd like to vote for one of these improvements, I'd love to hear from you in a review.
5.4.1 19 Jul
• Added Beat Type options to the Beat and Beat + Warp animated watermark effects.
• Improved the font selection screen UI.
Added a new Beat Type with subtler animation, making animated watermarks easier to use.
5.4.0 17 Jul
• Added a bug report feature
As the app continues to grow, an occasional bug may occur.
A bug report feature has been added to the Settings screen to help identify and fix issues more quickly.
5.3.0 13 Jul
• Fixed a bug affecting the Wallpaper Watermark + Video combination
• Improved support for high-resolution videos
5.2.1 11 Jul
・Added a new "Beat + Warp" animation for video watermarks.
・Fixed a bug that caused ads to be shown during video generation even for Pro users.
5.2.0 5 Jul
• Optimized Internal Storage Usage
Fonts are now downloaded on demand.
Added a Clear Font Cache option to remove unused downloaded fonts and minimize internal storage usage.
5.1.0 30 Jun
・Optimized internal storage usage
・Improved processing performance
・Added the new "Beat" animation for video watermarks
This update fixes an issue where temporary files could accumulate and improves storage management.
5.0.0 21 Jun
■ In version 4.2.0, the following improvements were made:
・Fixed a bug that caused crashes during video processing.
・Optimized internal code.
4.2.0 11 May
■ In version 4.1.1, we made the following improvements:
・Fixed a bug when saving templates in the studio feature
・Some UI has been translated into English
Since there are languages where localization has caused the UI to break, we have unified some of the UI in English.
I still feel a bit confused, but I think if the text in the UI changes frequently, users will not feel comfortable, so I will try not to make too many changes..。
● In the previous version 4.1.0, we allowed the creation and insertion of QR codes in the studio feature for creating watermarks.
Simple steps:
Studio tab → Select object layer → Long press → Tap to create QR code
4.1.1 16 Apr
In version 4.1.0, we added the ability to create and insert QR codes in the studio feature.
Simple steps:
Studio tab → Select object layer → Long press → Tap Create QR Code
In version 4.0.0, we made a major update.
• Added studio feature to create watermarks
• Added image saving formats (PNG, HEIC, WEBP)
• Improvements to some UI (such as numeric specifications)
With the studio feature, you can easily create watermarks for copyright display.
When applying, please load the watermark image from the image tab.
4.1.0 15 Apr
Version 4.0.2 fixes a bug where image encoding was executed twice during saving, which slowed down the process.
In the previous version 4.0.0, a major update was made.
- Added studio feature for creating watermarks
- Added image saving formats (PNG, HEIC, WEBP)
- Improvements to some UI elements (like numeric input)
With the studio feature, you can easily create a watermark for copyright notice. When applying, please load the watermark image from the image tab.
4.0.2 13 Apr
In version 4.0.1, some minor fixes were made, including localization support for some UI elements.
In the previous version 4.0.0, a major update was performed.
• Added studio feature for creating watermarks
• Added image saving formats (PNG, HEIC, WEBP)
• Improvements to some UI (such as numeric specification)
With the studio feature, you can easily create a watermark for copyright indication.
When applying, please load the watermark image from the image tab.
4.0.1 12 Apr
Version 4.0.0 has received a major update.
- Added studio feature to create watermarks
- Added image saving formats (PNG, HEIC, WEBP)
- Improved some UI (such as number specification)
With the studio feature, you can easily create watermarks for copyright display.
When applying, please load the watermark image from the images tab.
4.0.0 6 Apr
In version 3.0.6, you can choose the font type for AI removal protection.
You can change this in the settings tab → General settings → AI removal protection font type.
The font types are as follows:
"codystar(default)", "raleway-dots", "doto-regular", "doto-bold", "rubik-pixels"
Basically, these are dot-type fonts, but I added "rubik-pixels", which has a design with digital noise, to carefully test its effect.
If it seems effective, I am considering implementing a noise filter that can be applied to any font.
3.0.6 9 Feb
In version 3.0.1, minor bug fixes have been made.
In the previous version, 3.0.0, a major update was performed, adding the following features:
- Addition of watermark distribution feature
By performing email address verification, it becomes possible to upload and distribute watermark materials.
When a download occurs, advertisements can be displayed to the downloading user with links to the creator's profile, social media accounts, website, and skill selling platforms.
There is one ad impression per download.
3.0.1 25 Jan
We have made a major update to version 3.0.0.
・Added watermark distribution feature
By logging in, you will be able to publish and distribute the watermark you created yourself.
At the time of download, you can promote your profile, ad text, and the URL of your site or skill-selling platform to the downloading users.
1 download = 1 ad impression.
3.0.0 21 Jan
In version 2.8.1, the following improvements have been made:
- Bug fix for the feature allowing free placement of text watermarks
- Re-fix of the bug that darkens the video watermark when applied
There was a bug in the feature added last time, so it has been urgently fixed.
2.8.1 9 Jan
In version 2.8.0, we implemented and improved the following additional features:
- The ability to freely place text watermarks
- Fixed a bug where the video watermark would become darker
In the previous update, we implemented a feature to convert images to GIF or MP4 as a countermeasure against AI learning. You can execute it by selecting the settings tab → common settings → changing the image conversion format to gif or mp4.
2.8.0 7 Jan
In version 2.7.0, we implemented the following additional features.
- Added the function to convert images to GIF and MP4
- Added a watermark resistant to AI image editing
- Added detailed information about fonts
As a countermeasure against AI image editing, we implemented the function to convert images to GIF and MP4.
The recommended maximum size for GIF is 2048*2048, and if it exceeds that size, it will be resized.
MP4 is handled similarly.
This can be executed by selecting the bottom settings tab → Common Config → changing the image conversion format to gif or mp4.
Additionally, we implemented a watermark that is difficult to remove even with AI image editing.
It can be used by selecting Single mode → selecting the Advanced tab → turning on the Clip and offset checkbox.
Also, by pressing the i icon on the font selection screen, you can open the detailed information page for each font.
The font zoom feature allows you to check fine details, and it also displays a link to the font download page.
If you have decided on your favorite font and want to use it in other tools, be sure to check it out.
2.7.0 29/12/2025
In version 2.6.2, the following improvements have been made:
– Fixed a bug that altered the colour tone of the video when adding a watermark
– Fixed a bug where the preview position was misaligned when freely placing an image watermark
2.6.2 07/12/2025
In version 2.6.1, we made the following minor improvements:
- Added video selection to the file deletion feature for files processed by the app
- Minor adjustments to the color selection dialog
In the previous version 2.6.0, we made the following major improvements:
- Increased font color variations
- Added free selection feature for font color using color codes
- Improved the switching speed of text watermarks
- Improved the switching speed of image watermarks
Now that you can freely choose font colors, you can use colors that comply with your brand color.
Please give it a try!
2.6.1 04/12/2025
In version 2.5.4, we fixed the following bug:
- Re-fixed the bug where the app wouldn't start on iOS26.
This was not fixed in the previous version 2.5.3.
I apologize.
There may be another occurrence of this.
2.5.4 01/11/2025
In version 2.5.3, the following fixes were made:
· Fixed a bug that prevented the app from launching on ios26
2.5.3 30/10/2025
• Minor metadata updates
• Improved ad display
more Version 5.4.2 25 Jul
Data Used to Track You The following data may be used to track you across apps and websites owned by other companies:
Data Not Linked to You The following data may be collected but it is not linked to your identity: