Compress PDF
Reduce PDF file size by enabling object-stream compression, stripping unused objects, and dropping non-essential metadata. For deep image re-encoding, see Phase 2 server tools.
100% in your browser. Files never uploaded.
How to use
- 1Drop your PDFUp to 100 MB.
- 2Toggle metadata strippingOn by default — most PDFs include creator/producer strings worth dropping.
- 3Click CompressRe-emits with object streams. Reduction varies by source — typically 5–20% for already-modern PDFs, more for older or hand-written ones.
FAQ
Why isn't the reduction bigger?
Image re-encoding is where most savings come from on photo-heavy PDFs, and that needs a server-side decoder. Browser-side we can only do structural compression. A server-backed deep compress is on the Phase 2 roadmap.