Text Watermark - WaterStamp
Watermark Photo & Video Maker
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
This app lets you to add text watermarks to videos, illustrations, photos, and other images.
It's free, no need to register.
Features: Place single text, Place text like wallpaper, Adjustable settings (size, density, transparency), Cutout effect for seamless blending.
There are over 500 fonts to select from, allowing you to create a unique look.
We've introduced AI anti-removal fonts.
These employ dot fonts and random rainbow colors to mislead AI character recognition and boundary detection.
While this method doesn't entirely prevent watermark removal, it has shown a certain level of effectiveness.
Please give it a try.
more 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 1 day ago
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
In version 2.5.2, the following fixes were made:
- Fixed a bug that caused batch processing to fail when selecting image watermark.
2.5.2 17/10/2025
In version 2.5.1, improvements were mainly made around video processing.
• Added animation effects "Bounce" and "Bounce+Fade" for video watermarks.
• Added a preview screen for animation effects.
• Added a progress bar to display the progress during video processing.
• Fixed a bug that caused rotation during video processing.
• UI improvements.
2.5.1 14/10/2025
In version 2.5.0, the following major fixes were made:
- UI Organization
- Added animation effects "Move" and "Move + Fade" for video watermarks
- HDR video output support
- Lightweight due to library reduction
The processing speed for adding watermarks to videos has improved, so please give it a try.
More animations are planned to be added.
2.5.0 07/10/2025
In version 2.4.8, the following bug fixes were made:
• Fixed a bug where the original file from the time of capture was being loaded when selecting a photo.
We accidentally added a flag to specify the original version, causing edits in other editing apps to not be reflected. We apologize.
2.4.8 03/10/2025
In version 2.4.7, we made the following improvements:
• Fixed a bug that caused the conversion of video files (HDR) to fail
• Fixed a bug that prevented certain image and video files from loading
We have added the ability to downgrade HDR and HDR + Dolby Vision video files to SDR with a watermark.
The quality will decrease, but versatility will increase.
Our app automatically removes sensitive metadata like location information, so be sure to use it before posting on social media.
2.4.7 30/09/2025
In version 2.4.6, we made the following improvements:
- Fixed a bug that occasionally caused the app to freeze when selecting photos.
2.4.6 17/09/2025
In version 2.4.5, the following changes were made.
- The library has been updated.
- Minor corrections were made to the metadata.
2.4.5 01/09/2025
In version 2.4.4, we made the following changes:
- We reverted the oversized banner ad size back to the original size.
- Minor adjustments were made to the UI, including property icons.
- Minor adjustments were made to the metadata.
2.4.4 19/08/2025
In version 2.4.3, a bug with multiple ad loading was fixed, and performance speed was improved.
2.4.3 18/08/2025
In version 2.4.0, we implemented a new feature called "grid pattern." You can choose grid lines from solid, dashed, and dotted lines, and each can be freely customized in terms of color, opacity, and line thickness. You can also place icons between texts, adding a small design element. Give it a try!
2.4.0 21/07/2025
In version 2.3.5, we have added contact information for the app.
We have set up a support account on X (Twitter) for app inquiries.
Tap on the settings tab and select customer support, or search for @mt_app_support.
Feel free to leave a comment if you have feature requests or have encountered any bugs.
In the previous update, we introduced a major bug, and I was a bit scared to update, but now I plan to actively add features again.
2.3.5 31/05/2025
In version 2.3.4, we made the following fixes:
- Fixed a bug that prevented the app from opening due to issues with the translation file across the English-speaking regions.
Last time, I was complacent because it was a simple update, and I neglected to check the reviews, so I apologize for the delay in fixing this. I will be more careful from now on.
2.3.4 01/04/2025
In version 2.3.3, the following minor advertising-related fixes were made:
• Added a consent management platform (CMP) for Europe
• Added ads for high-quality apps
2.3.3 10/03/2025
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.
more Version 4.0.0 1 day ago
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