Get Snap Compressor free — on Google Play
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New Now with PDF Merge mode

Compress to any exact size.

Snap a photo, scan a document, or import an image — then set your target size. Snap Compressor handles the rest, entirely on your device.

3Compression modes
0Data collected
100%Offline & private
Compressed to 200 KB ✓
Snap Compressor
Snap Compressor
Target size
100 KB200 KB500 KB
4.2 MB
197 KB
−95%
Save to Gallery
PDF merged — 3 pages

Three modes

One app for every compression need

Whether you're shooting, scanning, or building a multi-page document — Snap Compressor has a dedicated mode for it.

Photo Mode

Snap or import any photo and compress it to an exact KB target. The algorithm iterates quality and scale automatically until you hit the mark.

📷 Photo

Document Scan

Place any document in the viewfinder and auto-crop corners to a clean A4 frame with contrast enhancement for sharp, readable scans.

📄 Document

PDF Merge

Capture or import multiple pages and compile them into a single compressed, shareable PDF with a custom filename — all in one tap.

📑 PDF Merge

How it works

Four steps. Done.

No accounts, no uploads, no waiting. Everything happens directly on your device.

01

Pick your mode

Choose Photo, Document Scan, or PDF Merge depending on what you're working with.

02

Snap or import

Use your camera directly inside the app, or select existing files from your gallery or storage.

03

Set the target size

Choose an exact output size — 100 KB, 200 KB, 500 KB, 1 MB, or a custom value.

04

Save or share

Export to Pictures/CameraCompressor or share directly. PDFs go to Downloads/SnapCompressor.

Target-size compression

You set the limit. We hit it.

Most compressors give you a quality slider and guess what comes out. Snap Compressor works backwards — you name the file size, and our algorithm iterates quality and resolution until the output lands under that exact number.

Exact KB targeting

Choose anywhere from 50 KB to 2 MB as your output cap.

Smart iteration

The compressor auto-adjusts quality and scale to converge on your target.

No repeated exports

Stop resaving manually to hit an email attachment limit. One tap does it.

Compression target
100 KB
200 KB
500 KB
1 MB
Processing
JPG
photo_4823.jpgOriginal: 4.2 MB
197 KB
PNG
screenshot.pngOriginal: 1.8 MB
194 KB
Space saved −95%

Document scanner

Auto-crop. Auto-contrast. Done.

The built-in document scanner detects page boundaries in real-time, auto-crops to a clean A4 ratio, and boosts contrast so text is crisp and readable — no manual editing required.

Real-time corner detection

Corner brackets guide you to a perfect frame before you shoot.

B&W contrast boost

Automatic contrast enhancement makes text sharp and backgrounds clean.

Then compress it too

After scanning, the same target-size compression pipeline applies.

Hold still — detecting edges
PDF
receipt_scan.jpgAuto-cropped · Contrast boosted
188 KB

Privacy-first

Your files never leave your phone.

No account, no upload, no tracking. Everything — camera access, image processing, PDF compilation — runs entirely inside Android's sandbox. When the app closes, nothing remains.

Zero data collected
No tracking SDKs
COPPA compliant
0
Data points collected
0
External SDKs
100%
On-device processing
Uses without sign-up

FAQ

Common questions

You choose an exact output size — e.g. 200 KB — and Snap Compressor iteratively adjusts quality and resolution until the output lands under that number. No guessing, no repeated manual exports.
Photo — standard image compression to any KB target.
Document — auto-crops to A4 ratio with B&W contrast enhancement.
PDF Merge — captures or imports multiple pages and compiles them into a single PDF.
No. Everything runs entirely on your device inside Android's secure sandbox. Your images, documents, and PDFs never leave your phone — not even anonymously.
Images are saved to Pictures/CameraCompressor and PDFs to Downloads/SnapCompressor. You can also share directly from the result screen.
There is no hard limit imposed by the app — performance depends on your device's available memory. Very large batches (50+ high-resolution photos) may take longer on older devices.

Free to download

Start compressing today.

No account needed. No files uploaded. Just install, snap, and compress.