🗜ī¸ Compress PDF

Make your PDF smaller

Shrink a PDF right in your browser — nothing uploaded.

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Click to choose a PDF or drag & drop it here Best results with scanned or image-heavy PDFs

ℹī¸ This works by re-compressing the pages as images, so it shrinks scanned/image PDFs a lot — but the text in a normal PDF becomes non-selectable, and text-only PDFs may not get smaller. We'll show you the before/after size.

Compress a PDF online — reduce file size for free

Large PDFs can be hard to email or upload. The Compress PDF tool reduces your PDF's file size — working best on scanned or image-heavy documents — right in your browser, so your file is never sent to a server.

How to compress a PDF

  1. Upload your PDF.
  2. Pick a compression level (Light, Balanced or Strong).
  3. Click Compress & download — we'll show you the before/after size.

Why compress PDFs with FileStays?

Frequently asked questions

Which PDFs shrink the most?
Scanned and image-heavy PDFs. Text-only PDFs are already small and may not compress much.

Will the text stay selectable?
Because compression re-encodes pages as images, text becomes non-selectable — keep your original if you need editable text.

Is my PDF uploaded?
No — compression runs entirely in your browser.