A composition of your own
Combine text, a logo, a drawn signature, a QR code, an emoji and an illustration on independent layers. Adjust fonts, colours, transparency and background, shadow or outline effects.
Coming soonNot yet available on the App Store.
Watermarks · Capture · Metadata
Make your mark.
Keep control of your copies.
A signature on your photos, a stated purpose on your documents, an identity on your videos. Compose your watermarks and prepare each copy before sharing.
On-device processing · No account
Features
From composition to the finished copy.
PDF · JPEG · PNG · HEIC · MP4 · MOV
Adjust on the actual file
Select a watermark on the preview, move it and resize it with the frame handles. Check PDF pages or video playback, and use two fingers to zoom the document.
Save and reuse
Keep compositions as templates or resume a project with its source. Apply the same settings to a batch of photos, PDFs and videos; each result and error remains identifiable.
Capture with a time reference
Take a photo or record in 4:3, 16:9 or square format. Choose from five date and time formats, with the time zone shown. For video, the text stays fixed at the start of capture; it is not a running clock.
Choose which information to keep
View, search, edit or remove supported metadata fields. Technical or opaque information that cannot be edited is read-only. Cleaning personal fields does not remove information visible in the document.
Organise and share the right copy
Organise files in folders and subfolders, rename, open or share them. Choose a destination in Files and, if needed, a password. The imported original stays intact.
Privacy
Local processing
Your documents, photos, videos, signatures and metadata are processed on your iPhone. No OS Studio account is required. The app does not send these files, watermark text or QR code content to OS Studio or advertising services.
A watermark helps identify a copy’s intended use; it cannot prevent all reuse or certify a file’s origin. Metadata is not a certification.
Support
A question about OS Watermark Pro?
Include the OS Watermark Pro version, iOS version and steps to reproduce the issue. Do not send sensitive documents or passwords.