Compress PDF — Reduce PDF File Size Free Online

Reduce PDF file size while keeping quality.

Drop files here or click to browse

How it works: the PDF is re-saved in a more compact form, entirely in your browser. Text-heavy PDFs shrink well; scanned or image-heavy PDFs shrink little, since their size lives in the images.

How to use the Compress PDF

  1. 1

    Upload your PDF.

  2. 2

    It is re-saved in a more compact form automatically.

  3. 3

    Download the compressed PDF and compare sizes.

100% Free
No Signup Needed
Private & Secure
Works on Mobile

Privacy: This tool runs 100% in your browser. Your files and text are processed on your own device and never uploaded to any server — you can verify this in your browser's Network tab.

Compress PDF FAQs

It depends. Text-heavy PDFs shrink well; scanned or photo-heavy PDFs shrink little, because their size lives in the images. The tool shows you the before and after sizes honestly.

About this tool

Email limits, upload forms and slow connections all punish oversized PDFs. DrokyAi's compressor re-saves your PDF in a tighter form — stripping waste and using compact object streams — without touching your content. You see the exact before/after size, so if a file barely shrinks, you know to keep the original. And because it all happens in your browser, confidential documents stay private.

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