How much can I reduce a PDF size?

Typically 20-80% depending on content. PDFs with many images compress the most.

Is there a file size limit?

No hard limit. Processing happens in your browser, so very large files may take longer.

Text is vector-based and stays crisp. Only embedded images may be slightly reduced in quality.

Yes — AchroTech Tools is completely free with no watermarks, unlike many PDF tools.

Your PDF never leaves your device. Everything runs locally in the browser.

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Free

Reduce your PDF file size while maintaining good quality. Perfect for email and web.

🔒 100% Private & Secure⚡ No signup required⏱️ Download your result — files are cleared when you close this tab

Drop your PDF here

Select a PDF to compress

Choose File

Drag & drop or click to upload your PDF file. Any size accepted.

Choose Low (smallest file), Medium (balanced), or High (best quality) compression level.

Click Compress PDF — the file is processed entirely in your browser, no server upload.

See how much space you saved and download the compressed PDF instantly.