Compress PDF

Reduce PDF file size locally with low, balanced, high, and custom image quality and DPI controls.

Options

Low, balanced, high, and custom compression levels.

Custom image quality and image DPI controls.

Smart comparison between structure-preserving and page-image compression.

Optional metadata removal and form-field flattening.

How to compress a PDF

  1. Upload PDF — Upload one PDF and unlock it locally if a password is required.
  2. Choose level — Choose low, balanced, high, or custom compression settings.
  3. Optional cleanup — Optionally remove metadata or flatten form fields.
  4. Download — Download the compressed PDF and review the before and after size.

FAQ

Are my PDFs uploaded?
No. Inspection, compression, preview, and export run in your browser.
Why did my PDF not get much smaller?
Some PDFs are already optimized or mostly text and vector graphics. The result panel warns when compression has little effect.
Will text stay selectable?
Structure-preserving output keeps selectable text when possible. Page-image compression can make a smaller file for image-heavy PDFs, but it visually flattens pages.