Compress PDF

Make your PDF smaller. Lossless mode keeps everything as it is, while the stronger levels shrink scanned and image-heavy PDFs a lot.

  • 100% free
  • No upload
  • 4 levels

Drop a PDF here

or

PDF files of any size. Password-protected PDFs are not supported.

Your files are processed on your device and are never uploaded.

How to compress a PDF

  1. 1

    Open your PDF

    Drop a PDF file, or choose it from your device.

  2. 2

    Choose a level

    Start with Lossless. For scans and photos, Medium or Strong saves much more.

  3. 3

    Download

    Press Compress PDF and download the smaller file.

Why use this PDF compressor

Lossless option

Cleans up and repacks the file without touching text or images.

Big savings for scans

Stronger levels shrink scanned PDFs to a fraction of their size.

Private and secure

Your files are processed in your browser and never uploaded.

Works everywhere

Chrome, Edge, Safari and Firefox on computers and phones. Nothing to install.

Reduce PDF size for email and online forms

The AIOCreate PDF compressor makes PDF files smaller so they fit email attachment limits and upload forms for job applications, schools and government websites.

Lossless mode rebuilds the file and packs its data more tightly. The other levels redraw each page as a compressed image, which works best for scanned documents and photo-heavy files. You always see the size before and after.

Compress PDF FAQ

How do I compress a PDF?

Open the PDF, choose a compression level, press Compress PDF and download the smaller file.

Which level should I choose?

Use Lossless for normal documents. For scans and photos, Medium or Strong gives much smaller files.

Will my text stay selectable?

Yes with Lossless. The other levels turn pages into images, so the text cannot be selected.

Is it free?

Yes. It is completely free, with no sign-up, no limits and no watermark.

Are my files uploaded?

No. Everything happens in your browser, on your own device, so your documents stay private.

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