Compress PDF

Reduce PDF file size by re-rendering pages at lower quality — all in your browser

Note: PDF compression works by re-rendering pages as JPEG images. This reduces file size but removes text selectability. Best for scanned PDFs and image-heavy documents.

Free PDF Compressor — Reduce PDF File Size Online

ezyimg's PDF Compressor reduces PDF file size by re-rendering pages as compressed JPEG images. Adjust quality from 30% (maximum compression) to 95% (best quality). Best for scanned PDFs, image-heavy documents, and photo PDFs. All processing runs locally in your browser.

How to Use

  1. 1

    Upload your PDF

    Drop any PDF file. Large scanned PDFs compress best.

  2. 2

    Set image quality

    70% is a good balance. Lower quality = smaller file but less sharpness.

  3. 3

    Compress and download

    The compressed PDF downloads automatically.

Tips & Best Practices

  • →Quality 50–70% typically reduces PDF size by 60–80% with acceptable visual quality.
  • →For text-heavy PDFs, compression is less effective — the text becomes an image (not selectable).
  • →Best results on scanned PDFs and photo albums.

Frequently Asked Questions

How do I compress a PDF online for free?

Upload your PDF to ezyimg's PDF Compressor, set the quality level, and click Compress. The smaller PDF downloads immediately — free, no account, no watermark.

How much can I reduce a PDF file size?

For scanned/photo PDFs, expect 50–80% reduction at quality 60-70%. Text-only PDFs see less benefit as the text is converted to images.