Workflow · Your photo never leaves this device
How to resize a photo to exact pixels and KB for an online application
Job portals, school applications and government forms often ask for a photo of an exact size, such as 400 × 500 pixels and under 100 KB. Here’s how to hit both numbers without uploading your photo to a converter site.
Prepare photos safely before sharing, selling or submitting
- 1. Checkwhat the photo reveals
- 2. Cleanremove location and camera data
- 3. Resizeto the pixels you need
- 4. Compressunder the size limit
Step-by-step for: Photos for a sale listing · Photos for an application or form · Privacy check before sharing · Using this for work?
Before you start
- Write down the three requirements from the form: pixel size (width × height), maximum file size (in KB) and file type (usually JPG).
- Start from the best original you have. Shrinking a big photo looks good; enlarging a small one makes it blurry.
1 Resize to the exact pixels
Open the image resizer, enter the width and height, and set When both are set to Crop to fill. The photo fills the exact size and the edges that don’t fit are trimmed evenly. Choose JPG under Save as.
2 Compress under the KB limit
Put the resized file into the image compressor, choose Size limit and type the limit. The tool finds the best quality that fits. For 100 KB there is also a ready-made 100KB page.
3 Check before you submit
- Windows: right-click the file and choose Properties. The General tab shows the file size and the Details tab shows the dimensions.
- Mac: select the file and press ⌘ Cmd + I.
- Phone: the tools list the final pixel size and file size next to each file before you download it.
Example
| Requirement | What to enter | Result |
|---|---|---|
| 400 × 500 px, JPG | Resizer: 400 and 500, Crop to fill, JPG | 400 × 500 px |
| Under 100 KB | Compressor: Size limit 95 KB | About 60 to 95 KB |
Aim about 5% under the limit. Some forms count a kilobyte as 1,000 bytes and others as 1,024, so a file of exactly 100 KB can still be rejected.
Watch out for
- Official ID and passport photos have rules beyond size: background color, head size, glasses and expression. These tools only change the size and file, so check the official instructions for everything else.
- Cropping a portrait: after resizing, look at the picture. If the face is off-center, crop the original in your phone’s photo editor first, then resize.
- Very low limits, such as 20 KB, make photos blocky. If the form allows it, a smaller pixel size looks better than heavy compression.
Check that nothing is uploaded
You don’t have to take our word for it. Check in about a minute:
- On a computer, open your browser’s developer tools: F12 on Windows, ⌥ Option + ⌘ Cmd + I on a Mac. Choose the Network tab.
- Add a photo to the tool and let it finish.
- Read the list. You’ll see this site’s own files, the open-source library files and one tiny anonymous visit count. No request is anywhere near the size of your photo, and none contains it.
- Or load the page, then turn off Wi‑Fi and mobile data. The tool keeps working, because your device does all the work.
The site also sends your browser a security policy that only allows connections to this site, the library host and the visit counter, so the page can’t send your photo anywhere else.