Photo Resizer App for Android to Hit a Size in KB or Pixels

A form that wants a photo at 600 by 600 and under 100 KB is asking for two different things: dimensions in pixels, and file size. Shrinking the dimensions makes the file smaller. Compressing makes the file smaller and leaves the dimensions alone. Cropping is neither: it cuts part of the picture away. For an exact size, on any Android phone, you need an app, and Resize Me! covers both with no ads.

Resize Me!, the one to install first

Resize Me!: Photo Compressor comes from XnView and shows no ads label and no in-app purchases on Google Play. It is one free listing, whose description says the complete feature set is in a single app. It also says there is no advertising, no account to create and no internet connection needed, because photos are processed on the phone and never uploaded.

For dimensions there are seven modes, among them a percentage, a longest or shortest side that keeps the proportions, and preset ratios such as 1:1 and 16:9. For file size you set a target in KB and the app finds the quality that meets it. It works on one photo or on hundreds, saves as JPEG, PNG or WebP, and lets you keep or strip the location and date data inside the file.

You do not have to open it first. The listing describes tapping Share on a photo in your gallery, choosing Resize Me! and picking a size.

When a form wants a size in KB

Online forms for exams, visas and job applications often set a ceiling in kilobytes. Resize Me! handles that with its target size. Two more apps are built around the same idea, both free with ads and in-app purchases.

Compress Image – MB to KB, from Double Ape, lets you pick a preset or type the exact size in KB. Its useful extra is a live preview: the listing says it shows the compressed photo and its file size before you save, so you can see what a 20 KB version of your face looks like before you commit to it. Photos are processed on the phone and saved as JPG, and you choose between replacing the originals and saving copies.

Puma: Photo Resizer Compressor, from Farluner Apps & Games, works from a list of sizes: 50 KB, 100 KB, 250 KB, 500 KB and up to 2.5 MB. It suits a passport or visa photo with fixed dimensions, with presets including 2 by 2 inches and 35 by 45 mm, and others for profile pictures and posts on the main social networks. It converts HEIC photos to JPG. The listing says photos never leave the phone. Batch processing and removing the ads are premium features.

Exact pixels or print sizes

Image Size – Photo Resizer from Codenia thinks in real-world units, and is free with ads and in-app purchases. You type the output size in pixels, millimetres, centimetres or inches, tap the chain icon to keep the proportions, and crop with your fingers to fit. That suits a print or an ID photo with a stated size in centimetres. The JPG quality is set in the settings, and the photo’s Exif data is copied across unless you turn that off.

Photo & Picture Resizer is the simple one. It offers a list of resolutions that match the shape of your photo, plus a custom size, and saves the result to a folder called Pictures/PhotoResizer. The listing says originals are not affected. Its own example is a 4 MB picture coming out at about 400 KB at 800 by 600. It comes from Farluner, the developer of Puma, and has ads and in-app purchases.

Photo Resizer, whose Google Play address still carries the name of the old Z Mobile Photo Resizer, now comes from an account named photoshop mobile apps. It is free with ads, and its listing describes the same resizing by pixels or percentage.

Samsung’s Gallery shrinks by percentage

A Samsung phone needs no app when the photo just has to be smaller. Samsung’s support site gives these steps:

1. Open the Gallery app and select the photo.
2. Tap the Edit icon at the bottom of the screen.
3. Tap More options, the three dots at the top right.
4. Select Resize.
5. Choose a percentage, then tap Done.
6. Tap Save.

Samsung says the smaller file size then shows in the image details. Saving overwrites the original photo, so if you want to keep it, tap More options and Save copy before you tap Save. The Resize option may not be there on every model. The limit is that Samsung’s steps offer percentages only, with no box for an exact number of pixels or kilobytes.

Google Photos only crops

Google’s help page for editing in Google Photos covers Crop, including fixed shapes such as a square under Aspect ratio. It describes no way to set a size in pixels or kilobytes.

Google Photos does have a Storage saver setting that compresses photos and brings anything over 16 megapixels down to 16. Google’s page describes it as a quality setting for backups to your Google Account, which is no help when a form wants a file under 100 KB.

Shrinking a batch of photos

Resize Me! is the pick for a whole folder. LitPhoto – Compress & Resize, from coolqoo, is for making many photos smaller to save space or to send. You select a batch and choose a compression quality, with crop and rotate on hand, and the smaller copies go into a LitPhoto folder while the originals stay as they were. The listing says there are no watermarks and no subscriptions. It shows ads.

Compress Image and Photo & Picture Resizer also take several photos at once. To send the lot as one attachment, pack them with a zip app for Android, or turn them into a video with a song using a slideshow maker.

Making a photo bigger

Samsung’s Gallery will not go above the original size. Puma and Photo & Picture Resizer both list enlarging among their features. Expect a softer picture, because enlarging spreads the same detail over more pixels.

If the form wants a scanned document and not a photo, a scanner app that saves a PDF is the better tool, and you will find those among the OCR apps.