⚡ Free Online Tool

Compress PDF to 300 KB

Make any PDF smaller than 300 KB — readable, free, nothing is uploaded.

PDFCompress
✓ 100% Free✓ No Sign-up Required
⬆

Upload PDF

PDF only · Max 100 MB · Click or drag & drop

📤 Select PDF File
Compressing...

✅ Compression Complete

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Original Size
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Compressed Size
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Size Saved
Download Compressed PDF
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Custom Options

Adjust settings to match exactly what you need

🔒
100% Private

Files are never uploaded to a server — processed in your browser

🆓
Free Forever

No limits, no payment, ever

How To Use

1

Upload the PDF

A scan, a phone-made PDF or any document.

2

300 KB is already selected

The "Exact size" mode is set to 300 KB — pick another size if your portal needs it.

3

Black & white if you like

For marksheets and certificates, Black & white roughly halves the size and stays sharp.

4

Compress and download

Quality is adjusted automatically until the PDF fits under 300 KB. Preview the pages and download.

About This Tool

This page is set to 300 KB. NTA forms (NEET, JEE Main) accept certificate PDFs of 50–300 KB. Aim for about 250 KB so the file is safely inside the range.

Popular PDF sizes

100 KB200 KB300 KB500 KB1 MB2 MB

Frequently Asked Questions

How do I compress a PDF to 300 KB?

Upload it, keep 300 KB selected in "Exact size" mode and tap Compress PDF. The downloaded file is under 300 KB.

Will the text still be readable?

Yes — the tool picks the highest quality that fits. The pages become images, so text is not selectable, but it stays readable.

It still won't go under 300 KB. What now?

Tick Black & white, remove unneeded pages with Delete PDF Pages, or choose a slightly bigger size.

Is my PDF uploaded?

No. Everything happens inside your browser.

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