OS Watermark Pro icon: cyan and violet W monogram over a document

Watermarks · Capture · Metadata

The right copy. Before you share.

Prepare a PDF, photo or video with a watermark suited to its intended use.

Features

From composition to the finished copy.

PDF · JPEG · PNG · HEIC · MP4 · MOV

Documents to send.

Sending documents? Add the recipient or intended use to the copy, then check each page of the PDF.

Images with your signature.

An image to publish, a video to identify: combine text, a logo or a signature to suit your project.

A reference for your on-site work.

A photo taken on site with the date and time visible: retain the context of your visit without presenting the timestamp as a certification.

Features and uses

A composition of your own

Combine text, logos, signatures, QR codes, emoji and illustrations on independent layers: three elements in Free, 32 with Premium or Family. Colours, opacity, backgrounds, shadows and everyday adjustments stay free; outlines and advanced effects are paid.

Indicate a recipient or intended use on a document copy.

A watermark does not prevent every reuse or certify the file’s origin.

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.

Make sure a mark remains readable without covering essential document information.

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. Adjust the appearance in a dedicated editor without rewriting the captured instant. Video displays a clock that advances during playback and in the export. You can add GPS coordinates or an address available at capture; the location stays fixed.

Choose which information to keep

View metadata and remove personal information for free. Premium and Family let you edit supported fields. Uneditable data stays read-only; cleaning metadata does not erase text already visible in an image.

Review available information before sending a photo.

Removing metadata does not erase text already visible in an image.

Organise and share the right copy

Organise copies in folders, rename, open or share them. Choose Files or, for photos and videos, Photos. Premium/Family adds password protection. The imported original remains untouched.

Prepare several images with the same visual identity without rebuilding the composition.

The imported original stays unchanged. Re-encoding can change compression or appearance.

Three steps before sharing.

  1. Compose

    Compose your watermark. Adjust its elements directly in the preview.

  2. Check

    Check the pages, video appearance and supported metadata before exporting.

  3. Export

    Save to Photos or Files, depending on the content. The imported original stays unchanged.

Read the guide

Privacy

Local processing

Your documents, photos, videos, signatures, metadata, watermark text and QR code content are processed on your device. No OS Studio account is required. The app does not upload them to an OS Studio server or to the advertising service for processing.

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.

At your own pace

Free, Premium or Family.

Start for free with ads, or choose ad-free Premium or Family to extend what you can do. No introductory trial is offered.

Free

€0 · with ads

  • 3 combined elements per composition
  • Batches of 5 files
  • 5 saved personal templates
  • Text, logos, signatures, QR, repetition and everyday adjustments
  • View metadata and remove personal information

Family

€19.99/year or €1.99/month

All Premium features for up to 6 people through Apple Family Sharing. The subscription shares access, never files or projects automatically.

Every plan includes photos, PDF, video and timestamps, Simple and Advanced modes, project resumption and export to Photos or Files. No daily export quota or forced OS logo. Video capture retains a technical 10-minute limit.

Native dimensions are preserved within supported-format limits. Re-encoding can change compression, codec or rendering; universal HDR or video frame-rate preservation and lossless output are not promised.

France reference prices. Apple displays the applicable price and billing period before purchase. Subscriptions renew automatically unless cancelled in Apple settings. Manage and restore purchases in the app: Settings → Subscriptions.

Support

Need help with OS Watermark Pro?

Find helpful answers, privacy information and a way to contact the studio.