Why might a photo stay over 100 KB?
A detailed image may need more bytes at its original pixels and format. The actual attempt is shown. You may download it marked as over the limit, or explicitly allow smaller dimensions and retry.
A LITTLE LESS FRICTION
Compress an image to 100 KB or less
Choose a photo to try the 100 KB limit. Check the result, then download. Your photo stays on your device.
or drop it here
JPEG, PNG or WebP · up to 25 MB and 24 megapixels
01 / YOUR PHOTO
02 / CHOOSE A TASK
Print at the selected paper/photo size and turn off extra “fit to page” scaling. Results depend on your printer or lab.
50% halves both dimensions. File size is measured separately.
Enlarging cannot restore detail or guarantee print quality.
Recommended compression
Need a specific file size?
File size
The target is a maximum, not an exact size. If it cannot be met at the selected dimensions, we tell you; we never reduce pixels silently.
1 KB = 1000 bytes · 1 MB = 1000000 bytes
Advanced options
This is a byte reduction, separate from width and height scaling.
Original reused only if no private metadata needs removal.
JPEG has no transparency. Choose a background before converting PNG or WebP; the background preview below shows it.
Background preview — full output frame
Adjust the framing
Your photo will appear here
Drag the photo to position it. The frame is exactly what will be exported.
Position controls
03 / YOUR RESULT
Original![Original]()
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Result![Result]()
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Choose a photo to see a recommended result.
File details and processing notes
Only pixels, format, byte limits and requested JPEG density are checked. Composition, background, lighting, head proportions and capture origin are not checked. Approval is not guaranteed.
What this result means
100 KB means 100,000 bytes here. The tool keeps the original pixel dimensions and format by default. If a result exceeds the limit, its actual size is shown; you can download that marked attempt or explicitly allow smaller dimensions and retry. Refreshing or switching language requires choosing the photo again.
Two measured examples
| Input | Output | Pixels / format | 100 KB target |
|---|---|---|---|
| 1,724,405 bytes | 99,173 bytes | 1200 × 1800 · JPEG | Met |
| 9,642,710 bytes | 106,757 bytes | 4000 × 3000 · JPEG | Not met |
100 KB is 100,000 bytes. These are measured examples, not a guarantee for another photo or browser. Full sample files and hashes are retained in the project review artifacts.
MADE TO BE SIMPLE
Three steps. One ready-to-use file.
- Choose a photo from your device.
- Get a recommended compression automatically, or choose a size, scale, print or document task.
- Check the actual result and download. For a specific KB limit, choose that option first.
Frequently asked questions
What does 100 KB mean here?
The limit is 100,000 bytes. It is a maximum, not a promise of exactly 100 KB. Check the actual bytes before using the file.
Can I compress a transparent PNG to 100 KB?
You can try while keeping PNG transparency. The browser encoder may not meet the limit. Converting to JPEG removes transparency and first requires you to choose and confirm a background.
A few practical limits
One still photo at a time. HEIC, GIF, animated PNG/WebP and unusual color workflows are not supported. Up to 8192 px per side, 24 MP input, 16 MP output, 25 MB input. Smaller photos work better on phones.
ID photo sizes: Requirements reference only
US visa · digital
600–1200 px square · JPEG · up to 240 KB. 24-bit sRGB required. Composition and the official 20:1 compression ratio are not automatically checked.
Official requirements ↗ · Checked 2026-10-25US passport · printed size
2 × 2 inch = 50.8 × 50.8 mm; 51 mm is approximate. 600 × 600 px at 300 PPI. No preset file-size cap. Printed applications only; other photo requirements are not checked.
Official requirements ↗ · Checked 2026-10-25Canada IEC · digital
IEC only. At least 420 × 540 px; frame at least 35 × 45 mm (separate requirements). JPEG output. Minimum 60 KB; 240 KB is ideal, not a hard maximum. Native digital photos only: scanned photos require at least 600 PPI and are not supported by this preset. Head and shoulder composition is not checked.
Official requirements ↗ · Checked 2026-10-25Canada passport · print size
Size aid only: 50 × 70 mm. At the tool default 300 PPI this rounds to 591 × 827 px; 300 PPI is not a government requirement. A commercial photographer and professional printing are required. The photo must be unaltered; head height 31–36 mm and other conditions are not checked. Print at 50 × 70 mm without extra scaling. This tool does not verify submission eligibility.
Official requirements ↗ · Checked 2026-10-25Canada passport · online renewal size
Size aid only: JPEG, portrait 2:3, 1200–3000 × 1800–4500 px, 200 KB–5 MB. Default 1200 × 1800 is a tool choice, not the only valid size. The photo must come directly from the camera original and must not be altered; a commercial photographer, 45–50% head height and photographer details are also required. This tool does not verify submission eligibility.
Official requirements ↗ · Checked 2026-10-25