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How to compress a PDF for free without losing quality

An oversized PDF is a common headache: an attachment rejected by your mail service, a slow upload, a full storage drive. The good news is that you can dramatically reduce a PDF's size while keeping it perfectly readable. Here's how to do it for free, straight from your browser.

Free tool — files automatically deleted after 1 hour.

Why does a PDF become so heavy?

A PDF's weight comes mainly from high-resolution images, embedded fonts and graphic elements. A scanned document, for example, contains a full-resolution image for every page, which can quickly reach several dozen megabytes.

Compression optimizes these images and removes unnecessary data, without touching the text or the structure of the document.

Compress a PDF in 3 steps

  1. 1Upload your PDF file by dragging it into the drop zone.
  2. 2Let MediaForge automatically optimize the images and structure.
  3. 3Download your lighter PDF, ready to share.

The file is automatically deleted from our servers after 1 hour: your privacy is guaranteed.

Keep the quality while reducing the size

Good compression is about balance: reducing the size without making text blurry or images pixelated. For a document meant to be read on screen or sent by email, standard compression is more than enough.

For a document to be printed in high quality, favor light compression to preserve the sharpness of the images.

Frequently asked questions

Does compression alter the text in my PDF?

No. The text stays vector-based and perfectly sharp. Only the images are optimized.

Are my files safe?

Yes. Your files are processed securely and then automatically deleted after one hour.

Ready to try?

Get started for free, with no complicated sign-up.