Everything runs on your machine — your input is processed right here in your browser and never uploaded to any server.

Compress PDF

Pages are re-rendered as optimized images — great for scans, but selectable text becomes part of the image.

About this tool

Portals, email gateways, and government sites love rejecting PDFs for being a few hundred kilobytes too large. This tool shrinks a PDF entirely in your browser: pick a quality preset, or type the exact size limit you have to meet and let the compressor work its way down to it.

Compression works by re-rendering every page as an optimized image — the same technique that makes scanned documents dramatically smaller. It is ideal for scans and image-heavy files; for text-born PDFs note that the text becomes part of the page image and is no longer selectable.

How to use

  1. Choose one or more PDFs — batches download together as a ZIP.
  2. Pick a quality preset: Light, Balanced, or Strong.
  3. Need to hit a hard limit? Enter it in "Target size (KB)" and the tool steps down quality and resolution until the file fits.
  4. Press "Compress & download" — the result shows the before and after sizes.

The whole compression pipeline — rendering, re-encoding, rebuilding — runs in your browser tab. Contracts, statements, and ID scans are never uploaded anywhere.

Frequently asked questions

Why did my text PDF get bigger instead of smaller?

A PDF that is mostly vector text is already tiny; re-rendering it as images can grow it. This tool shines on scanned and image-heavy documents, which is where oversized PDFs almost always come from.

Is the target size guaranteed?

The compressor walks a quality and resolution ladder until the file fits your target. In the rare case even the smallest setting cannot reach it, the smallest achievable version is saved and you are told the target was missed.

Will the pages stay the same size?

Yes — every page keeps its exact physical dimensions; only the rendering inside it is recompressed.