Image Compressor & Resizer
Shrink photos to a target size in KB and resize to exact pixels for online forms.
Your files are processed inside your browser. Nothing is uploaded to any server.
Get your photo under the upload limit
Online forms in Nepal, from Loksewa Aayog and university admissions to passport, licence and bank KYC forms, set strict limits on photo and signature uploads, often something like 100 KB or 200 KB and sometimes fixed pixel sizes. Phone photos are several MB. This tool reduces the file to your target KB and can resize or crop it to exact pixels. Always check the exact requirement in the form's own instructions.
How to use
- Choose one or more images.
- Enter the maximum size in KB, or switch to Quality to set it yourself.
- If the form needs exact dimensions, enter width and height and choose Crop to exact size.
- Click Compress images and download the result. Each image shows its new size and pixels.
Frequently asked questions
Which format should I choose?
JPG is accepted by almost every form and is the safe choice. WebP makes smaller files but some older portals reject it. PNG keeps full quality but does not compress photos much.
My signature looks blurry after compressing.
Scan or photograph the signature on plain white paper in good light, crop tightly, then compress. A higher KB target keeps edges sharper.
For documents with several pages, use JPG to PDF and then Compress PDF.
How the tool reaches your KB target
When you enter a maximum size in KB, the tool does not guess one quality setting. It tries JPG quality values between 5% and 95%, halving the range eight times, and keeps the best quality that stays under your limit. If even the lowest quality is still too large, it shrinks the image in steps of 15% (at 60% quality) until the file fits. In practice this means you get the sharpest photo that meets the limit, and the size is reduced only when it has to be. The limit uses 1 KB = 1,024 bytes.
Turning millimetres into pixels
Forms sometimes give a photo size in millimetres or inches instead of pixels. Convert it with: pixels = millimetres / 25.4 x dpi. Use the dpi the form asks for; if it gives none, 300 dpi is the usual print value.
| If the form asks for | At 300 dpi | At 200 dpi |
|---|---|---|
| 35 x 45 mm photo | 413 x 531 px | 276 x 354 px |
| 2 x 2 inch (50.8 mm) photo | 600 x 600 px | 400 x 400 px |
| 51 x 51 mm photo | 602 x 602 px | 402 x 402 px |
Enter those numbers in the width and height boxes and choose Crop to exact size, so the photo is trimmed to the right shape instead of being squashed.
Worked example: a phone photo for a 200 KB limit
- Your photo from the phone is 4000 x 3000 pixels and about 3 MB.
- Type 200 in the KB box and 600 in the width box. Leave height empty, so the tool calculates it: 3000 x 600 / 4000 = 450 px.
- The image now has 270,000 pixels instead of 12,000,000, about 44 times fewer. A file that small reaches 200 KB without heavy compression, so it stays sharp.
- Download it and check the size shown under the preview before you upload.
If you only enter the KB target and leave the size at 4000 x 3000, the tool has to drop quality a lot or shrink the image itself, and faces can look blotchy. Setting a sensible width first gives a better result at the same KB.
Common mistakes
- Choosing Stretch to exact size. A portrait photo stretched to a square makes the face look wide. Use Crop or Fit instead.
- Keeping PNG for a photo. PNG does not use quality settings, so a photo stays large. Use JPG for photos.
- Transparent signature images. When you save as JPG, transparent areas become white. That is what most forms expect, but check the edges look clean.
- Uploading a screenshot of the photo. A screenshot adds the phone's screen borders and lowers quality. Compress the original photo file.
- Shadows on signatures and documents. Take the photo near a window in daylight, hold the phone straight above the paper, and crop tightly before compressing.
More questions
Can I compress many photos at once?
Yes. Select several images; each is processed with the same settings and you can download them together as a ZIP file.
The tool says some images could not reach the target. Why?
The target was too small for the image even after shrinking. Enter a smaller width and height first, or raise the KB limit if the form allows it.
Are my photos uploaded to a server?
No. All the work happens inside your browser, so ID photos and signatures never leave your device.
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