Batch Compress PDF

New

Compress multiple PDFs and download as ZIP

Browser-only
No data stored
Instant results

Select PDFs to compress

or drag and drop — multiple files supported

.pdfMax 10 MBMultiple files

How to use

Select your files, reorder them if needed, and click the process button. Your file will be processed instantly.

Privacy Guaranteed

Utilon processes files 100% on your device. We never see your documents, and they are never uploaded to our servers.

Frequently Asked Questions

How many PDFs can I compress at once?
There's no hard limit — add as many as your browser can handle. For best performance, we recommend batches of up to 50 files.
Are my files uploaded to a server?
No. All compression happens in your browser using pdf-lib. Your files never leave your device.
What's inside the ZIP?
Each compressed PDF is saved as 'compressed-originalname.pdf' inside the ZIP archive.
How much compression should I expect?
Typically 10–40% for text-heavy PDFs. Image-heavy PDFs may see less improvement.

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