How to Reduce Photo File Size
Get Under 1MB, 500KB or 200KB
Form uploads, email attachments and message boards often cap files at something like "1MB or less." File size is set by two things: the pixel dimensions and the compression quality. Lowering both together hits the target with the least visible quality loss.
Contents
Note: The values below are rough guides for typical phone photos. Actual results depend on the image content, so check the real file size after saving.
1. What determines file size
- Pixel count — resizing a 4000×3000 photo to 2000×1500 leaves a quarter of the pixels, and the file shrinks a lot.
- Compression quality — dropping JPG quality from 100% to 80% roughly halves the file with little visible difference.
- File format — JPG or WebP is much lighter than PNG for photos. Simply converting a PNG photo to JPG can shrink it dramatically.
2. Recommended settings by target size
| Target | Width | JPG quality | Typical use |
|---|---|---|---|
| Under 1MB | 2000px or less | 80–85% | Email attachments, general forums |
| Under 500KB | 1600px or less | 75–80% | Job applications, supporting documents |
| Under 300KB | 1280px or less | 70–75% | Online forms, ID photos |
| Under 200KB | 1024px or less | 65–75% | Government and school sites |
| Under 100KB | 800px or less | 60–70% | Profiles, thumbnails |
Tip: Lower the quality first, and only shrink the width if you are still over the limit. For photos of text documents, keep the width at 1280px or more so the text stays readable.
3. Steps to reduce it for free
- Upload your photo to ImgFixIt (nothing is sent to a server)
- Go to step 3, Compress/Resize
- Choose JPG and set the quality slider to the value in the table
- If it is still too large, enable Resize and enter a smaller width
- Download, check the real file size in the file properties, and if it is over the limit, lower the quality by 5–10 points and save again
4. When the size will not drop
- PNG screenshots — flat-color PNGs can be small, but captures that include photos shrink a lot as JPG.
- JPGs compressed many times — recompressing gains little. Start again from the original.
- Images with text — very low quality blurs the edges of letters. Reduce the width slightly instead.
For the theory, see the complete image compression guide and the JPG vs PNG vs WebP comparison.
5. Documents and ID photos without uploading
Photos submitted to banks or agencies often contain personal data. ImgFixIt processes everything inside your browser, so your photo never leaves your device. Before submitting, also add a watermark to state the purpose and use mosaic to hide sensitive details.