Markepi app icon
Now available on the App Store

A watermark says it's yours.
Markepi proves it.

A privacy-first watermarking and photo-provenance studio for iPhone and iPad. Add text, logos, signatures, white frames, and retro date stamps to photos, videos, and Live Photos — then cryptographically sign them with tamper-evident Content Credentials (C2PA). 100% on-device. No account. No cloud.

Download on the App Store

A complete
watermarking studio.

Stack text, logos, hand-drawn signatures, an elegant white frame, and a retro date stamp in a single live editor. Pull media in from Photos, Files, or the Share sheet, arrange your layers with a live preview, and send the finished result straight to its destination.

  • Text, logo & signature layers
  • White frame with auto EXIF caption
  • Retro film-camera date stamps
  • Reusable templates for one-tap consistency
The Markepi editor showing a tulip photo with a text watermark and logo, and the Text, Logo, Sign, Frame, Layers, and More tool bar
Stack layers
Live preview
The iOS share sheet showing the finished watermarked photo above Copy, Save Image, Assign to Contact, and Print

From Photos to shared,
no copy left behind.

Watermarking should be a pass-through, not a detour. Markepi hands the finished file straight to the iOS share sheet — Messages, Mail, Instagram, AirDrop, Files, or back to Photos — with no mandatory save step. No duplicate clutter in your library, unless you choose to keep one.

  • Share-sheet in, share-sheet out
  • No forced save, no duplicates
  • No app-branded watermark, ever

Keep your HDR.
Keep your metadata.

Watermarking shouldn't degrade your photo. Markepi carries your HDR gain map, GPS location, capture date, camera and lens info, and color profile straight through to the export, and matches your source format by default — where most watermark apps flatten HDR and strip metadata. Your photo comes out as good as it went in, just with your mark on it.

  • HDR gain map preserved
  • Full original metadata carried through
  • Photos, videos & Live Photos
  • Metadata privacy profiles when you share
A photo in a white frame with a caption reading iPhone XS, 4mm, f/1.8, 1/1718, ISO 25, 3024 by 4032, JPEG, filled in automatically from the photo's EXIF data
HDR-safe
Video & Live
Flagship feature

Content Credentials (C2PA)

Anyone can add a watermark. Almost no consumer app can cryptographically seal who you say made a photo, how it was made, and whether it has been altered since — on-device, with no cloud. Markepi does.

Prove your photo is real.
Prove it's yours.

In the age of AI-generated imagery, Markepi seals a signed, tamper-evident C2PA manifest into your exports. It's signed with a key created on your device — held in the Secure Enclave, where it cannot be exported, on hardware that supports it. No upload, no account, no cloud signing service. Any C2PA-aware tool can check the seal, anytime.

  • On-device signing, Secure Enclave-backed where available
  • Tamper-evident — any edit breaks the signature
  • Preserves prior provenance as an ingredient
  • Evidence-gated claims — you can't sign a lie
  • Reads & verifies incoming Content Credentials
  • Plain-language Export Receipt after every sign
The Protected and Ready summary showing the declared source, the EXIF Markepi read, and the Content Credentials, creator, and copyright records sealed into the photo
No cloud
IPTC rights

In the age of AI, sign what's real.

Powerful Features

Everything you need to mark, protect, and prove your work.

1

Text Watermarks

Add your name, brand, handle, or copyright line in a choice of typefaces, with full control over color, opacity, size, and position. Stack multiple text layers.

2

Logo / Image Watermarks

Drop in a PNG or image logo from Photos or Files. Add several logos, resize them, set transparency, and place them anywhere on the image.

3

Hand-Drawn Signatures

Sign your work with your finger or Apple Pencil on a real drawing canvas. Adjust ink color and stroke thickness for a personal touch a font can't replicate.

4

White Frame + Smart Captions

Add a clean gallery-style white border with an optional caption that auto-fills from your photo's EXIF data — camera, lens, aperture, shutter, ISO, date, and more. No typing required.

5

Retro Date Stamps

Burn a warm, glowing film-camera "databack" date into the corner of your photo, in six authentic formats — using the photo's real capture date.

6

Photos, Videos & Live Photos

Watermark not just stills but full videos (with audio) and Live Photos (with motion). Very few watermark apps do all three.

7

HDR & Metadata Preservation

Your HDR gain map, GPS, capture date, camera info, and color profile all survive the watermark — where most apps flatten and strip them.

8

Batch Processing (up to 20)

Apply one watermark configuration to a whole set at once — mixing photos, videos, and Live Photos — with per-photo overrides when a single image needs something different.

9

⭐ Content Credentials (C2PA) — the flagship

Cryptographically sign your photos on-device with a tamper-evident C2PA manifest — the open standard behind Adobe, the BBC, Sony, Nikon, and Leica. Embed IPTC rights metadata, declare honestly how the image was made, preserve any existing provenance as an ingredient, and get a plain-language Export Receipt — all with a key created on your device and held in the Secure Enclave where available. Learn more →

More Great Features

The details that make Markepi a genuine studio in your pocket.

Share Anywhere

Send the finished file straight to any app through the iOS share sheet — no mandatory copy to your library.

Reusable Templates

Save any watermark setup as a named template and apply your whole look to future photos in one tap.

Per-Item Overrides

In a batch, long-press any thumbnail to adjust that single photo independently — then reset to the shared config anytime.

Provenance Verification

Read and check any C2PA manifest already in a photo you bring in — see who signed it and whether the seal is still intact before you trust or re-share it.

IPTC Rights Metadata

Seal creator, copyright, credit, usage terms, and licensor URL into your export so ownership travels with the file.

Metadata Privacy Profiles

Choose Preserve all, Strip sensitive, or Minimal public — remove your location before posting while keeping HDR and rights.

On-Device Processing

No backend, no account, no analytics. Every watermark and signature is rendered entirely on your iPhone or iPad.

Liquid Glass & Accessible

A modern adaptive editor for portrait and landscape, with full Dynamic Type, VoiceOver, and Reduce Motion support.

What Markepi does

Every screen below is the real app.

Logo panel with an opacity slider and the nine-point position menu open

Place your mark anywhere

Text, logos, and signatures each get their own opacity, scale, and a nine-point position grid. The preview updates as you adjust.

Retro Date Stamp settings with format and position controls, on a photo with a hand-drawn signature

Sign it, or date it like film

Sign by hand with your finger or Apple Pencil, and burn in a warm orange film-camera date in the format and corner you choose.

Layers panel listing a text layer with position, size, and opacity controls

Every layer stays editable

Each overlay keeps its own position, size, and opacity. Hide it, reorder it, or remove it without touching the rest.

Sign export screen explaining what gets sealed, the Secure Enclave signing key, and what the signature is not

Sign with Content Credentials

Markepi spells out exactly what gets sealed, signs it with a key held on your device, and hands you a readable receipt. Later edits break the seal and any verifier can tell.

A watermarked video with a timeline scrubber

Video, not just stills

Videos get the same layers and frame across every frame, with audio and metadata carried through. Scrub the timeline to check your mark.

Batch carousel with three photos loaded and one selected

Up to 20 at once

Apply one configuration across a whole batch of photos and videos, then give any single item its own overrides.

Finished photo combining a white frame, EXIF caption, logo, and text watermark

Your HDR survives it

Frame, caption, logo, and text together — with the HDR gain map, GPS, capture date, and camera info still intact underneath.

Sign what's real.

Markepi is now available on the App Store. Download today and start signing your work.

Download on the App Store