How do I compress images already inside a PDF?

Upload the file, select compression strength, and apply — embedded rasters are re-encoded in place.

Is this different from Compress PDF?

Both shrink files via images; this one emphasizes clean re-encoding of existing rasters, while Compress PDF focuses on resolution downsampling.

No — textual and vector layers pass through unmodified by design.

Locally in your browser. Files are processed entirely inside your browser using client-side JavaScript. Your document is never uploaded to a server.

Compress embedded images while keeping text sharp.

Runs in your browser. Your input isn't uploaded.Last updated: August 2026see changelog

Target just the pictures: re-encode embedded JPEGs and PNGs at efficient quality while every character of text survives intact.

How-to guides for this task, written as a walkthrough rather than a landing page.

Where file size actually comes from, and which setting costs the most quality.

When a size limit is the blocker, this is the shortest route under it.