Compress PDF
Reduce PDF size by downsampling images.
Compression works by downsampling images. Text-heavy PDFs may shrink little; vector-only PDFs may not shrink at all.
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Native client-side processing.
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About Compress PDF
Compress a PDF by re-rendering embedded raster images at a lower resolution and JPEG quality. Client-side with pdf-lib.
Compress PDF runs entirely in your browser using PDF Tools technology. Your files are processed locally and never uploaded to a server — there is no cloud, no storage, and no account required. Nothing about your file is sent anywhere.