Compress PDF

Reduce the size of your PDF files.

FreeNo fixed size limit: depends on your deviceProcessed on your device: your file is not uploaded

Compression mode

Compression level

Recommended Compression

Drop your PDFs here

Load a single file or a whole batch · multi-select active

This file is processed on your device

Frequently Asked Questions

How can I compress a PDF online?

Upload your PDF, choose the compression level and download the smaller file. Everything happens in your browser, with no upload to our servers.

Is compressing PDFs online really free?

Yes, compressing PDFs on PDFLibero is free and needs no sign-up. No watermark and no limits for personal use.

Do I lose quality when compressing a PDF?

Smart compression reduces the size while keeping the content readable. You can choose light, balanced or maximum compression.

Are my PDF files safe?

Yes. Compression happens entirely in your browser: your PDFs are never uploaded to our servers.

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