Compress PDF

Shrink heavy PDFs with a simple quality setting — compress a whole batch at once, privately in your browser. No upload.

Read the guide: How to Compress a PDF to Reduce File Size

Drop PDFs here

PDF files — processed privately on your device

How it works

  1. 1

    Add PDFs

    Drop in one or many PDFs — scans and image-heavy files shrink the most.

  2. 2

    Pick a level

    Choose how hard to compress. See the size saving on each file instantly.

  3. 3

    Download

    Save one file or the whole batch as a zip. Nothing is uploaded.

Instant & 100% private — nothing is uploaded

Your images are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

Are my files uploaded to a server?
No. Everything happens entirely on your own device, inside your browser. Your PDFs and any passwords never leave your computer, so there are no upload waits and no copies kept anywhere.
How does the compression work?
Each page is re-rendered as a high-quality image and rebuilt into a leaner PDF. This shrinks scanned and image-heavy documents dramatically. The trade-off is that text in the output is no longer selectable — it becomes part of the page image.
How much smaller will my PDF get?
It depends on the document, but scanned and photo-heavy PDFs often drop by 50–80%. Text-only PDFs that are already small may not shrink much — we never hand back a file larger than the original.
Can I compress several PDFs at once?
Yes. Add a whole batch, apply one compression level to all of them, and download them together as a zip.