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Compress PDF Online for Free

Reduce PDF file size directly in your browser, without unnecessary uploads or software installation.

Select PDF file
PDF documents processed privately in a web browser

Compress your PDF

Choose an optimization level based on whether you want to preserve document structure or prioritize a smaller visual file.

Drop a PDF here

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Your PDF is processed in your browser

PDFextreme compresses your document locally whenever possible. Your file does not need to be uploaded to our server.

How to compress a PDF

01

Select a PDF file.

02

Choose low, medium or high compression.

03

Click the compress button.

04

Download the compressed PDF.

Why compress PDFs with PDFextreme?

Free

Compress PDF files without paying for the tool.

Fast

Reduce file size through a focused browser workflow.

No installation

No software installation is required.

Browser-based

Supported processing runs on your own device.

Easy to use

Choose a level, compress and download in a few steps.

Privacy-focused

Local processing helps avoid unnecessary uploads.

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Frequently asked questions

This tool is designed to compress PDF files locally in your browser, so the file does not need to be uploaded to our server.
Choose low, medium or high compression depending on your preferred balance between file size and quality. Results depend on the PDF structure, images and browser capabilities.
Not always. A PDF that is already well optimized may stay close to its original size. Image-heavy documents usually have more room for size reduction.
Yes, although higher compression and large documents may use more memory and may perform better on a desktop computer.
Yes, the tool is free to use.

Make your PDF easier to share

Reduce the file size locally and download the optimized document in moments.

Compress a PDF
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