Compress PDF — Reduce PDF File Size

Compress PDF — how it works

Shrink a large PDF in your browser by re-rendering pages at your chosen quality. Great for email limits. Nothing is uploaded.

Why FileZap is different

• Truly private. Unlike most online tools that upload your files to a server, FileZap processes everything inside your browser. Your files never leave your device.
• Instant. No upload/download round-trip and no processing queue — results appear the moment you drop a file.
• No catch. No sign-up, no email, no watermark, no daily limit.

FAQ

How does PDF compression work here?

Each page is re-rendered at a quality you choose and rebuilt into a smaller PDF — most effective for scanned or image-heavy PDFs.

Will the text still be selectable?

This aggressive mode rasterises pages, so text becomes part of the image. Use it when you need the smallest possible file for emailing.

Is my file uploaded?

No — it is compressed entirely in your browser.