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Drop a PDF to compress

Or click to browse — your file stays in your browser

Files stay on this device

Your files never leave your browser. All processing happens locally.

Read the guide

How to Compress a PDF Without Uploading It

Pairs well with

PDF Sign

Sign PDF documents online. Draw your signature and…

PDF Merge

Combine multiple PDF files into one document.

PDF Form Fill

Fill out PDF forms online. Type into fields, check…

PDF Password Protect

Add AES-256 password protection to a PDF document …

About PDF Compress

Reduce PDF file size while keeping quality.

Everything happens on your device. Close the tab and it's gone.

Built browser-first. Run by one developer.

Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.

386

Free tools

Across 14 categories

Visual editors

PDF · image · video · audio

Curated kits

By profession + lifestyle

AI tools

Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser

The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.