You can put your logo on photos with an Android phone and no subscription. PlainMark takes a PNG or any picture as the logo. If the logo sits on a plain background such as white, you can remove that background in one tap. The copies save at full size, and the originals are never changed.

These steps match the Play listing as of November 2026. Every feature on the listing is free. There is no subscription, no credits, no trial, no ads, and no account. It works offline.

Get the logo ready

A PNG with a transparent background is the cleanest place to start. A logo on plain white works too, because PlainMark can remove a plain background. One-tap removal is only for a plain background. If your logo sits on a photo or a busy pattern, I would ask whoever designed it for a PNG file instead.

Put the logo on one photo

  1. Install PlainMark. Pick a photo in Android’s picker, or share it to PlainMark from your gallery. The app does not ask for storage permission.
  2. Add a logo and choose your PNG or picture.
  3. If the logo has a plain background, such as white, tap to remove it.
  4. Drag the logo where you want it. Pinch or use the corner handle to resize and rotate it, or snap it to a corner.
  5. Add a line of text next to it if you like. Quick inserts cover ©, ®, ™, the year, today’s date, and details you type yourself, such as your website or handle.
  6. For text, pick from 10 fonts and set the colour, size, opacity, and rotation. A shadow, an outline, or a background box keeps it readable on a busy photo.
  7. Use undo and redo while you try out different spots.
  8. Save. The copy goes to Pictures/PlainMark.

Use the same logo on a batch

  1. Save the watermark so you can reuse it in one tap. PlainMark also remembers the last one you used.
  2. Choose a batch of photos. The logo keeps the same margin from the corner on every photo, whatever its size or shape. Portrait and landscape shots end up looking consistent.
  3. If you worry that someone will crop a corner logo off, repeat the mark across the photo as a diagonal pattern. That is harder to crop out.

Put the logo on a video

PlainMark burns the watermark into video at the original resolution, and the sound comes along. Video copies go to Movies/PlainMark.

What the saved copy looks like

  • The same size and shape as the original. There is no forced crop and no surprise reduction.
  • JPEG or PNG kept as it was. You can also choose JPEG or PNG yourself and set the JPEG quality.
  • Optional smaller sizes of 2048 or 1080 px, if the photo is going to social media.
  • The location is removed from saved photo copies by default. The date and camera details stay. You can change this in Settings.

When PlainMark is not the whole job

PlainMark adds a name, logo, or website. It does not stamp the time and place a photo was taken. If you need both, burn in the date and location first with PlainStamp, then add your logo to that copy. If you only want a text watermark, the general guide on how to watermark photos and videos on Android is the better place to start.

PlainMark has no internet permission. There are no ads, no analytics, no tracking, and no sign-up. Your photos stay on the phone until you share them.

Get PlainMark on Google Play