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Optimize PDF Images

Squeeze oversized images out of a PDF.

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About Optimize PDF Images

Optimize PDF Images is here for making a document lighter without wrecking it: squeeze oversized images out of a PDF. It takes PDF and produces PDF. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

The slow route to making a document lighter without wrecking it is installing something, making an account and uploading the file; this is the fast route.

How to use Optimize PDF Images in 3 steps

  1. Drop the PDF onto the drop area — a single file, up to 100 MB.
  2. Set Compression strength — low, recommended, extreme, or custom, which then exposes Render resolution and JPEG quality.
  3. Press Compress PDF and download the PDF result.

What you get with Optimize PDF Images

  • One job, done in the browser: squeeze oversized images out of a PDF.
  • Free to use, with no signup and no account
  • No watermark or logo added to your output
  • Works on desktop and mobile, no install

Optimize PDF Images: questions

Which file types does Optimize PDF Images accept?
The drop area takes PDF. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".
What do I get back from Optimize PDF Images?
The result is PDF, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.
How big a file can I use?
Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
Where does the processing actually happen?
In this tab. The file is read locally, converted or edited locally, and handed back as a download — no copy is sent to a server, so there is nothing for anyone to breach or keep.