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Compress image
to 300KB.

Get scans, certificates and photos to a JPG under 300 KB while keeping text readable. Runs in your browser.

Output: JPG under 300 KB — change it after upload

Drop images here  or  browse files

Paste Ctrl+V to compress screenshots instantly

PNG JPEG WebP GIF BMP AVIF
No server uploads Unlimited files & sizes MozJPEG · oxipng · libwebp

# File size tools

Make a scan or certificate fit under 300KB

A 300 KB cap is common for document uploads — mark sheets, certificates, ID proofs, bills — where the portal wants something legible but not huge. A phone scan is easily 3–6 MB, so you need roughly a 10–20x reduction without making the text mushy.

The tool picks the highest quality that fits under 300 KB and only reduces resolution when it must, so printed text and stamps stay readable. You see the final size and pixel dimensions before you download.

  • Text stays readable

    Quality is maximised under the limit, with resolution reduced only when required.

  • Batch several pages

    Drop all your documents together and download them as one ZIP.

  • No upload

    ID proofs and certificates are processed locally — never sent to a server.

How to compress an image to 300KB

  1. 1

    Photograph the document flat, in even light, and crop to the page edges.

  2. 2

    Drop the image in the box above — a JPG under 300 KB is made automatically.

  3. 3

    Zoom into the preview to check the text, then download and upload.

Typical places a 300KB limit applies

Certificates / mark sheets JPG or PDF, commonly 100–500 KB
Address / ID proof scans JPG or PDF, commonly up to 300 KB
Product or listing photos Often a few hundred KB

Limits differ between exams and change between years — always follow the exact size, dimensions and format in your official notification.

# FAQ

Compress to 300KB: common questions

How do I reduce a 2MB scan to 300KB?

Drop it here. The tool finds the highest JPEG quality that fits under 300 KB and downsizes only if needed, then shows you the final size.

Will the text still be readable?

In most cases yes — a well-lit scan of printed text holds up well at 300 KB. If very small print blurs, retake the photo closer and flatter, then compress again.

Can I get a PDF under 300KB here?

This tool compresses images (JPG, PNG, WebP and similar), not PDF files. Convert the page to an image first if the portal accepts JPG.

Is anything uploaded?

No. Compression runs entirely in your browser on your own device.