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Compress PDF Online Free

Reduce your PDF file size to any exact target — 100KB, 200KB, 500KB, 1MB and more. Renders each page at optimal quality using binary-search. No file upload, no watermark, 100% free.

✓ No Server Upload ✓ No Watermark ✓ Instant Processing Up to 100MB

1 Upload Your PDF

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Drag & Drop your PDF here

or click the button below to browse

Select PDF File

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2 Set Target File Size

Quick Presets

Custom Target Size

The compressed file will be at or below your target size.

Load PDF

Render pages

Optimise quality

Rebuild PDF

Finalise

✅ Compression Complete!

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Original Size

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Compressed

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Space Saved

How to Compress PDF Online for Free — No Upload Required

Most government portals in India — including UPSC, SSC, NRA CET, railway recruitment boards, state PSCs, and bank exams — require PDF documents under 200KB, 500KB, or 1MB. Our PDF compressor lets you type your exact required size and automatically reduces the file to meet it.

How It Works (Technical)

Our tool renders each page of your PDF to a Canvas element using PDF.js, then uses a binary-search algorithm to find the optimal JPEG compression quality that produces a file at or below your target size. The compressed pages are assembled into a new PDF using PDF-lib. All processing happens in your browser — nothing is ever uploaded to a server.

Upload your PDF

Drag & drop or click to select. Any PDF up to 100MB.

Set target size

Choose a preset like 200KB or type a custom value in KB or MB.

Download

Get your compressed PDF instantly. No email, no waiting.

Frequently Asked Questions

How do I compress a PDF to 200KB?

Upload your PDF, select the "200 KB" preset or type 200 in the custom field, then click "Compress PDF". The tool automatically adjusts image quality across all pages to reach your target.

Why is my compressed PDF slightly larger than the target?

PDFs containing non-image content (text layers, fonts, vector graphics) have a minimum size floor that can't be reduced by image compression alone. The tool will show you the smallest achievable size in this case.

Will my compressed PDF have a watermark?

No. There are no watermarks, no branding added to your PDF. The output is a clean, standard PDF file.

Is it safe to compress my Aadhar card or bank statement here?

Yes. Files are processed entirely in your browser using JavaScript. Nothing is uploaded to our servers or any third-party server. Your sensitive documents stay private.