How do I compress a PDF for free online?

Open the ClearwayPDF compress tool, add your PDF, choose a level and click Compress, then Download. The smaller file is saved to your device.

How much can ClearwayPDF reduce a PDF file size?

Compression results vary by file content. Scanned PDFs with large images typically see 50–80% reduction. Text-heavy PDFs see smaller gains.

Does compressing a PDF reduce quality?

ClearwayPDF compresses by re-rendering pages at a lower resolution. Text and vector content looks the same; image-heavy pages may show slight reduction in sharpness.

Are my files sent to a server when compressing?

No. Compression runs entirely in your browser. No files are uploaded, stored, or shared.

Is ClearwayPDF a free alternative to ilovepdf compress?

Yes. ClearwayPDF compresses PDFs for free with no account and no watermarks. Practical limits depend on your browser and device.

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Compress PDF

Compress PDF Free Online — Reduce File Size Instantly

Shrink large PDF files in seconds. No upload to any server, no account, no watermarks. Perfect for scanned documents, email attachments, and storage.

Compress a PDF now →

How it works

Three steps, done.

Step 1

Open the Compress tool

Go to ClearwayPDF and open the Compress PDF tool.

Step 2

Upload your PDF

Drag your PDF into the upload area or click to browse and select the file.

Step 3

Download the result

Click Compress, check the new size, then click Download.

What you get

Everything included, nothing locked

Works on scanned PDFs

Best results on image-heavy and scanned documents where pages are stored as large images.

Files up to 100 MB

Upload PDFs up to 100 MB. Processing happens in your browser, so very large files depend on your device memory and browser.

No watermarks

The compressed output is clean — no ClearwayPDF branding or stamps added.

Fully private

Your file never leaves your device. Compression is done 100% in the browser.

No account needed

Compress immediately without signing up or providing any personal information.

Any device

Works on Mac, Windows, Linux, iOS, and Android — any modern browser.

Why ClearwayPDF

Free, private, no strings attached

No subscription or paywall
No file uploads — fully private
No watermarks on output
No account or login needed
Works on any modern browser
Free to use

Try it free →

Guides

Guides for this tool

Compress PDF

How to reduce PDF size for an upload limit

Get a PDF under the size limit of a job portal, government form or school system, and what each compression level does to your document.

6 min readRead

Compress PDF

How to compress a PDF for email without uploading it

A practical guide to reducing PDF file size for email attachments, especially scanned documents and image-heavy files.

6 min readRead

Convert PDF

How to convert a PDF to JPG or PNG images

Turn PDF pages into image files for slides, social posts, chat apps and websites, and choose between JPG and PNG.

5 min readRead

FAQ

Frequently asked questions

How do I compress a PDF for free online?: Open the ClearwayPDF compress tool, add your PDF, choose a level and click Compress, then Download.
How much can it reduce the file size?: Scanned PDFs typically see 50–80% reduction. Text-heavy PDFs see smaller gains since text is already compact.
Does compressing reduce quality?: Pages are re-rendered at a lower resolution. Text looks the same; image-heavy pages may see slight reduction in sharpness.
Are my files sent to a server?: No. Compression runs entirely in your browser. No files are uploaded, stored, or shared.
Is this a free alternative to ilovepdf compress?: Yes. ClearwayPDF compresses PDFs for free with no account and no watermarks. Practical limits depend on your browser and device.