Compress PDF online — without uploading

Reduce PDF file size online

ShrinkBeam processes your PDF locally in the browser. Smart mode aims to preserve the document structure, while stronger compression can reduce image-heavy and scanned PDFs further.

Compress PDF to 1 MB, 2 MB, 5 MB or 10 MB

Select a preset target or enter a custom size. ShrinkBeam searches locally for a suitable balance of resolution and image quality. Very complex PDFs may not reach an extremely small target without visible quality loss.

How to compress a PDF

Select your PDF, choose Smart compression or a target size, start compression and save the optimized file. The original file remains unchanged.

Private PDF compression

Your PDF is not uploaded to a ShrinkBeam processing server. Compression runs on your device, which is useful for documents you do not want to send to an online conversion service.