How to resize a photo on a Samsung Galaxy

howtosimply.com/guides/how-to-resize-a-photo-on-a-samsung-galaxy/ · Checked October 2026 · Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

3 of 3 steps with real screenshots · 2 official sources below

Device

Android

Shown on

Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

Real screenshots

3 of 3 steps

Checked

October 2026

Sources

2 official, linked below

Step by step

1. 

   Open the editor menu

   Open the photo in Gallery and tap the pencil. In the editor, tap the three dots at the top right. On One UI 8.5 Resize is in this editor menu, not the viewer's.

   Done

2. 

   Pick a size

   Choose a percentage. Each one shows the new size in pixels; for our 1080x2340 picture, 20% is 216x468. A photo can only be made smaller, not bigger.

   Done

3. 

   Tap Done and save

   Tap Done, then save. To keep the original, tap the three dots and Save copy instead of Save. We tapped Original and left without saving.

   Done

If you do not see this option

• There is no Resize Samsung says the resize feature may not be supported on some models. On our One UI 8.5 phone it was only in the editor menu, after tapping the pencil. Source: How to resize a photo in the Gallery app on your Galaxy phone
• You want it bigger Samsung says resizing a photo to be larger than its original size is not an option. Only 20 to 80 percent are offered. Source: How to resize a photo in the Gallery app on your Galaxy phone

If this does not work

• Save copy is greyed out On our phone Save copy stayed greyed out until a change was made. Pick a size and tap Done first.
• You saved over the original Samsung says that if you want to cancel after saving, you can revert in the editor. Source: How to resize a photo in the Gallery app on your Galaxy phone
• The file is still too big Pick a smaller percentage. Samsung says the reduced file size shows in the picture's details. Source: How to resize a photo in the Gallery app on your Galaxy phone

About this guide

Resizing makes a photo smaller in pixels and in file size, which helps when a website or email has a size limit. We tried this on our own test files and saved nothing.

The screenshots are from a Samsung Galaxy A57 5G with One UI 8.5 and Android 16, in Dark mode, using test pictures and a test video we made for this guide. Other Galaxy phones on One UI 8 use the same Gallery; on older versions a few names differ.

Good to know

Save copy keeps the original and adds the smaller version as a new picture.

Cropping cuts part of the picture away; resizing keeps all of it but with fewer pixels.

In short: Gallery, the photo, pencil, three dots, Resize, choose a size, Done, Save copy.

📷 See real photos from the Galaxy A57 in our Camera Lab, next to 10 other phones.