Compress PDF

Compress PDF files in your browser

Reduce scanned or image-heavy PDFs with adjustable compression while keeping the file on your device.

Compress PDF
Your files stay in this browser. Nothing is uploaded to a server.
Compress PDF Online Free

Compress PDF

Choose a compression level, preview pages, and download a smaller PDF.

Drop PDF files here

Your files stay in this browser. Nothing is uploaded to a server.

Reduce PDF file size without server uploads

PDF compression is useful when a file is too large for email, forms, messaging apps, or storage limits. This browser version focuses on scanned and image-heavy PDFs.

The tool renders each page into a JPEG image and rebuilds the PDF at the selected quality level. Smaller output gives stronger compression, while clear output keeps more visual detail.

Because the work happens in your browser, the PDF does not need to be uploaded just to create a lighter copy.

How compression works

Three levels

Choose small, balanced, or clear depending on the size and quality you need.

Image-based output

Pages are rasterized, which works best for scanned PDFs but may remove selectable text.

Private browser workflow

Rendering and PDF rebuilding happen locally in the browser.

How it works

1

Upload your PDF

Preview the pages locally in your browser.

2

Choose compression

Pick small, balanced, or clear output.

3

Download the PDF

A compressed PDF is generated on your device.

Questions

What kind of PDF compresses best?+

Scanned and image-heavy PDFs usually compress best with this browser-based method.

Will selectable text stay selectable?+

No. This version rasterizes pages into images, so selectable text may become part of the page image.

Why might a text-only PDF get larger?+

Text-only PDFs are often already compact. Rasterizing them can make them larger, so this tool is best for image-heavy files.

Is my PDF uploaded?+

No. Compression runs in your browser.

Which level should I choose?+

Use balanced first. Choose small for stronger compression or clear when readability matters more.