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This preset compresses a photo to 15 MB or less (15,728,640 bytes). That is a common ceiling on application forms, ID uploads, CMS fields and email systems.
That is a large budget (about 105 megapixels of a typical photo). Most pictures will already fit, and the tool will leave quality alone unless the original is larger.
| Target file size | 15 MB (15,728,640 bytes) |
|---|---|
| Dimensions | Auto: reduced only as needed |
| Best formats | JPG, WebP, AVIF (PNG is lossless) |
| Typical pixel budget | ≈ 104.86 MP (11820 × 8870 at 4:3) |
What fits in 15 MB
File size depends on both pixel count and how much detail the picture holds. The estimates below use rules of thumb for photos saved as JPG at web quality (roughly 0.08 to 0.3 bytes per pixel); your own result will vary with the image.
A typical 12-megapixel phone photo is around 3.5 MB, so it may already be under 15 MB. The tool only acts if the file is above the target.
| Kind of image | Roughly fits in 15 MB |
|---|---|
| Smooth image (sky, studio backdrop, flat graphics) | 16190 × 12140 px (196.61 MP) |
| Typical photo | 11820 × 8870 px (104.86 MP) |
| Detailed photo (foliage, text, crowds) | 8360 × 6270 px (52.43 MP) |
How to stay under 15 MB with the best quality
- Start from the original. Compressing a copy that was already compressed stacks artifacts on top of each other.
- Reduce dimensions before quality if you have a choice. Fewer pixels at good quality looks better than many pixels at poor quality.
- Use JPG or WebP for photographs. Keep PNG for flat-color graphics; a photographic PNG is usually many times larger than the same picture as a JPG.
- Do not rename the file extension to change format. Choose the output format in the tool so the file is actually re-encoded.
- Check the result at 100% zoom, looking at faces and text, before you submit it.
About this size limit
Here 1 KB is 1,024 bytes, so 15 MB is 15,728,640 bytes. Some systems count 1 KB as 1,000 bytes, which makes their limit about 2.3% smaller. If a portal is strict, choose a target a little below its stated limit; an extra margin costs very little quality.
How to resize an image to 15MB
- Add your image. Select a photo or drag it onto the box above. JPG, PNG, WebP, AVIF, HEIC and BMP files are accepted, and the file stays on your device.
- Check the 15 MB target. The editor opens with the target file size already set to 15 MB and the dimensions left on Auto, so the tool only reduces quality and size as far as it must.
- Pick an output format. JPG or WebP usually give the smallest result for photos. PNG is lossless, so it cannot be squeezed by lowering quality.
- Download and verify. Download the result and check its size in your file manager. If it is still above 15 MB, lower the pixel dimensions slightly or crop out unneeded areas and run it again.
Related presets
Nearby file-size limits
More in this category: Resize Image to a Target File Size. For several photos at once, use the bulk image resizer.
Frequently asked questions
How do I resize an image to 15MB without it looking blurry?▼
How many pixels can a 15 MB image have?▼
What if the result is still larger than 15 MB?▼
Which format gives the smallest 15 MB file?▼
Is my image uploaded anywhere?▼
Can I resize several images to 15 MB at once?▼
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