Make a PDF smaller so it is easier to email, upload or store.
What it does
It reduces a PDF's file size by re-optimizing embedded images and cleaning up the document structure, aiming to keep the text and pages clearly readable.
How it works
- Upload the PDF you want to shrink.
- Zegi re-encodes images and streamlines the file server-side.
- Download the smaller PDF and compare the size.
Supported formats
Input: PDF. Output: PDF.
What you get
A smaller PDF that opens in any PDF reader.
Important limitations
- How much a file shrinks depends on its contents — image-heavy scans compress a lot; mostly-text PDFs are already small and may change little.
- Aggressive compression of scanned pages can soften image detail.
Privacy & your files
Your files are processed on Zegi's own servers — never sent to a third-party AI service — and are removed automatically after processing. See our Privacy Policy and Data Retention Policy for details.
Frequently asked questions
- Will compression reduce quality?
- Image-based pages are re-encoded, which can slightly reduce image sharpness. Text stays crisp. Choose a lighter setting if you need maximum fidelity.
- Is there a file-size limit?
- Uploads are subject to your plan's limits; a free tier is available. Larger files and higher volumes are covered by paid plans.
- Can I compress a PDF via the API?
- Yes — PDF compression is available through the developer API. See the API documentation.