Compress PDF file size

Shrink PDFs by re-encoding pages at a quality you choose.

Runs on your deviceFreeNo account

How to use Compress PDF

Upload a PDF and pick a quality preset (strong, balanced, or sharp). Strong is best for scans; sharp keeps diagrams readable. Download the smaller file and compare the byte count in the summary.

Large scanned PDFs clog inboxes. Omnipus renders each page and writes a tighter JPEG-backed PDF so attachments send faster, with a live before/after size.

Also searched as compress pdf, reduce pdf size, pdf compressor. All processing for this tool happens in your tab unless labeled otherwise.

Questions

Will text stay selectable?

This compressor rasterizes pages for maximum shrinkage. For text-only PDFs the savings are smaller and text becomes an image.

Is it lossless?

No — it is a visual recompress. Choose Sharp if you need extra clarity.

Private?

Yes. Pages never leave the tab.

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