ConvertThoseFiles logoConvertThoseFiles.com

PDF Compressor

Shrink large PDFs for email, upload, and archival.

Our compressor optimizes images and removes redundant metadata so the PDF gets smaller while staying visually faithful — no surprise text reflow or font swaps.

Open the PDF Compressor converter Private uploads Files never leave your device Free — no signup

How your files are handled

  • No uploads

    Your files never leave your device.

  • In-browser processing

    Every conversion runs locally in your browser.

  • Nothing stored

    Files aren't uploaded, so there's nothing to keep.

  • Privacy by default

    We never share or index your files.

How PDF Compressor works

  1. 1

    Add your PDF

    Drag and drop a PDF file (or pick one from your device). Supports files up to 25 MB.

  2. 2

    Convert privately

    The conversion runs locally in your browser and produces a clean compressed PDF file — nothing is uploaded.

  3. 3

    Download your compressed PDF

    Grab the compressed PDF in seconds. Your file never leaves your device.

Frequently asked questions

Is my file private?
Yes. The conversion runs entirely in your browser — your file is never uploaded to any server, so it stays on your device.
What's the file size limit?
Every tool is free with a 25 MB per-file limit — no accounts and no paid tiers.
Do I need to install anything?
No. ConvertThoseFiles runs entirely in your browser — no plugins, no desktop app, no signup required.

Related converters

Ready to convert?

Launch the live PDF Compressor converter and have your file ready in seconds.

Start PDF Compressor