Compress PDF Locally

Safe optimization reduces metadata overhead. Image-heavy mode re-renders pages which may change quality. Results vary by document.
Beta

Processed on your device

Select a PDF file to compress

Click or drag and drop a PDF file here

How to compress a PDF

  1. 1

    Select your PDF

    Choose the PDF file you want to compress — it stays in your browser.

  2. 2

    Compress

    Click "Compress PDF" and the tool optimizes internal structures to reduce file size.

  3. 3

    Compare & download

    See the size difference and download the compressed PDF — all done locally.

Frequently asked questions

How much can a PDF be compressed?

Results vary by content. PDFs with large images often see significant size reduction, while already well-compressed files may show little change. This tool is in beta — results will improve over time.

Will compression reduce quality?

Safe compression may produce only small savings. Image-heavy mode re-renders pages at lower quality which always changes the visual output.