Compress PDF

Pages are re-rendered at a lower weight. Pick the balance between size and sharpness.

Drop your file here

Select file

Accepted: PDF

Quality

Compression re-renders pages, so selectable text becomes an image. Use the best-quality setting for documents you plan to print.

Free · No sign-up · Files never leave your device for most tools

This tool runs entirely in your browser — your file is never uploaded.

How it works

Upload

Adjust

Download

Frequently asked

Is Compress PDF free?

Yes. Compress PDF is completely free with no sign-up, no watermark and no daily limit. There is no paid tier — every tool on iAdorePDF is free to use as often as you like.

Is Compress PDF safe and private?

Yes. Compress PDF runs entirely inside your browser, so your file is never uploaded to any server. Nothing leaves your device, which makes it safe for confidential documents.

Do I need to install any software?

No. Compress PDF works in any modern browser — Chrome, Safari, Firefox or Edge. There is nothing to download and no account to create.

Does Compress PDF work on a phone?

Yes. Compress PDF is built mobile-first and works on iPhone and Android exactly as it does on a computer, straight from the browser.

How much smaller will my PDF be?

Scanned and image-heavy PDFs usually shrink by 50-80%. Pick Smallest size for email attachments, or Best quality when the document will be printed. Compression re-renders pages, so selectable text becomes an image.

How do I use Compress PDF?

Open the page, drop your file into the upload box (or tap Select file), choose your options, then press the start button. Your result downloads straight to your device.

Is there a file size limit?

There is no server limit because the work happens on your own device. The practical ceiling is your device memory; files up to about 100 MB are comfortable on most phones and much larger on a computer.

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