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Compress PDF Files Online

Reduce PDF size with lossless optimization or stronger image-based compression directly in your browser.

Browser-basedTwo compression modesPrivate processing
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Upload a PDF File

Select one PDF, preview its pages and choose the compression method.

Compress & Download

Free Online PDF Compressor

This PDF compressor offers two different approaches. Lossless optimization keeps selectable text and vector content but may provide only modest savings. Image-based compression can reduce size much more by converting every page to a JPEG image.

Why did lossless compression save very little?

The source PDF may already be optimized. Browser-side structural cleanup cannot always reduce embedded images or fonts.

Does strong compression preserve selectable text?

No. Strong compression rasterizes each page into an image, so selectable text, links and form fields are removed.

Are files uploaded?

No. The PDF is processed locally in your browser.