Images
Compress Image to 30 KB
Reduce a photo, scan or signature to 30 KB or less, ready for photos and signatures on forms with a 30 KB limit. The tool keeps the highest quality that fits and shows the exact file size before you download.
Smaller dimensions are the biggest saving for large photos.
Getting a photo under 30 KB
Online forms often set a strict size limit for photos and signatures. Choose your image above and it is compressed to 30 KB or less automatically. The tool starts at the highest quality and lowers it step by step until the file fits; if the photo is very large, it is also reduced in pixel size, which keeps it clearer than squeezing a huge image into a tiny file.
- Check other requirements too. Many forms also ask for specific dimensions (for example 200 × 230 pixels) or a format. Use the converter to change the format, and the Resize option here to set the size.
- Crop first. A tight crop of the face or signature keeps more detail within the same file size.
- Scan signatures in good light on white paper: a clean background compresses far smaller than a grey, shadowed one.
Where 30 KB is asked for
Requirements as published for the 2026 cycle. They change between years and exams, so check the instructions for your own form before you upload.
| Form | What it asks for |
|---|---|
| Forms that cap photos or signatures at 30 KB | Check the pixel size the form asks for, usually JPG |
| IBPS PO, Clerk and RRB photo | 200 × 230 px, 20–50 KB, JPG |
For a 20–50 KB range such as the IBPS photo, 30 KB lands safely inside it.
Step-by-step help with pixel sizes, formats and rejections: how to reduce photo and signature size for online forms.
Which level to choose
| Level | JPG and WebP | PNG | Good for |
|---|---|---|---|
| Smallest | Quality 60 | 64 colours | Thumbnails, previews, chat |
| Balanced | Quality 75 | 256 colours | Websites, email, social media (default) |
| Best quality | Quality 85 | Lossless | Portfolios, print proofs, archives |
Use Compare on any image to drag between the original and the compressed version before you download.
Getting the smallest files
- Resize large photos. A 12-megapixel phone photo is about 4000 pixels wide; a website rarely shows images wider than 1920. Setting a maximum size is often the single biggest saving.
- Use the right format. Photos belong in JPG or WebP; screenshots, logos and graphics with flat colours in PNG. WebP is typically 25–35% smaller than JPG and works in all current browsers.
- Compress from the original. Each round of lossy compression loses a little more detail.
Private by design
Compression runs in your browser using WebAssembly versions of MozJPEG, libwebp and OxiPNG, the codecs behind Google’s Squoosh (licences). Your images are never uploaded. Compressed files are saved without EXIF metadata, so camera details and GPS location are not shared.
Common mistakes
Saving photos as PNG
A photo saved as PNG is often five to ten times the size of a good JPG with no visible benefit. Choose JPG or WebP under "Save as".
Compressing a screenshot as JPG
Text and sharp edges in screenshots blur and ring as JPG. Keep screenshots as PNG; the palette compression here shrinks them just as much.
Squeezing a huge photo into a tiny file
A 4000-pixel photo at 50 KB looks blocky. Reduce the pixel size first (the File size mode does this for you) and the result stays clear.
Guides
Frequently asked questions
How do I make sure the image is under 30 KB?
Is 1 KB 1,000 or 1,024 bytes here?
Will the image still look sharp?
Can it change the format too?
Are my photos uploaded?
Last reviewed 9 October 2026. This tool runs in your browser; nothing you enter is stored or sent to Boostlix.