toolsko

Choose your language

ToolsKo is written in English. Prefer another language? Open a translated version of this public page.

Browser language suggestion: English. You can choose any language below.

Translation opens in a new tab using Google Translate. It receives this public page URL. Automatic translations may contain mistakes; use the original English page for tool inputs, downloads, and generated documents.

Your choice is remembered on this browser when storage is available. Use Language in the header to change it.

Compress PDF (Make Smaller)

Shrink a big PDF so it fits email or upload limits.

Tool inputs stay in your browser · optional AI search sends your query

Loading tool…

Good to know: Pages become pictures to save space, so text in the smaller copy cannot be selected. Keep the original. Your files are processed on your device and never uploaded.

How to use it (step by step)

  1. 1Choose the big PDF.
  2. 2Lower the quality and sharpness for a smaller file (try Medium first).
  3. 3Press Compress PDF and check the new size shown.
  4. 4Download it. Keep your original if you need to copy text later.

Words to know

Compression
Making a file smaller, usually by lowering quality a little, so it uploads and sends faster.
PDF
A document file that looks the same on every phone and computer.

More in PDF Tools