Compress PDF.

Reduce PDF file size for email, forms, and upload limits — privately in your browser.

Compress PDF

Shrink PDF file size in your browser. Files never leave your device.

How it works

Four steps.

  1. 01

    Upload a PDF by dragging and dropping it or clicking to browse.

  2. 02

    Pick a compression level: Low (smallest), Medium (balanced), or High (best quality).

  3. 03

    Click Compress PDF and wait while pages are optimized in your browser.

  4. 04

    Review the size reduction and download your compressed PDF.

Features

Why use this PDF compressor.

Fast, private compression built for everyday document size limits.

  • Shrink PDF File Size

    Reduce PDF size for email attachments, government portals, and upload limits without installing software.

  • Compression Levels

    Choose Low, Medium, or High compression to balance file size and visual quality for your use case.

  • Private & Browser-Based

    Your PDF never leaves your device. Compression runs entirely in your browser for complete privacy.

  • Fast & Free

    Compress PDFs in seconds with no signup, watermark, or daily limits.

  • Safe for Documents

    Ideal for marksheets, ID scans, forms, and reports that need to meet strict size caps.

  • Instant Download

    Preview size savings and download the compressed PDF immediately when ready.

FAQ

Questions.

Can't find an answer? Send us your question.

Is Compress PDF free and private?

Yes. Compression runs entirely in your browser. Your file is never uploaded to our servers, and there is no signup or watermark.

How does PDF compression work?

Each page is re-rendered and re-encoded as a compressed image inside a new PDF. This usually shrinks scanned or image-heavy PDFs a lot. Text-heavy PDFs may become image-based, so text selection and search can be limited after compression.

Which compression level should I choose?

Low — smallest file, good for portal upload limits. Medium — balanced size and quality (recommended). High — larger file, sharper pages for print or archival.

What file size limit is supported?

There is no hard server limit because processing is local. Very large PDFs (many pages or very high resolution) may take longer and need more browser memory. Try Medium or Low compression for big files.

Can I compress password-protected PDFs?

Not yet. Unlock the PDF first, then compress it with this tool.

Will the compressed PDF look blurry?

Quality depends on the level you pick. Medium keeps most documents readable. If pages look soft, switch to High and compress again.

Related tools

More Utilities tools.

All 114 Utilities tools →

Built by Infyways

Need more than a tool.

These utilities are made by the Infyways studio. When a free tool is not enough, we build the real thing.