Toolbuns/Compress PDF

Compress PDF

Shrink a PDF by re-rendering its pages at lower quality. Note: pages become images (text won't stay selectable).

Reduce a PDF's file size so it's easier to email or upload, right in your browser. Your document is never sent to a server.

How to use Compress PDF

  1. Add your PDF.
  2. Start the compression.
  3. Compare the original and reduced size.
  4. Download the smaller PDF.

Frequently asked questions

How does the compression work?

It re-renders and re-encodes the pages to cut file size. Image-heavy PDFs shrink the most; text-only PDFs are already compact.

Will the text still be readable?

Yes. Pages stay legible; the savings come mainly from optimizing embedded images.

Is my PDF uploaded?

No. Compression runs locally in your browser, so your document never leaves your device.

Related tools
Merge PDFSplit PDFPDF → ImagesImage → PDF