Compress PDF Online – Reduce PDF File Size Free

PDF TOOL

Reduce PDF file size securely, processed locally in your browser.

PDF COMPRESSOR

Compress PDF Online

Reduce the file size of your PDF directly in your browser. Choose a compression level based on the balance you want between file size and image quality, then download the compressed PDF.

FEATURES

Everything you need to compress a PDF

Reduce PDF file size directly in your browser without uploading your original document to a server.

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Easy PDF Upload

Select a PDF from your device or drag and drop it directly into the compressor.

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Choose Compression Level

Choose between High Quality, Balanced, and Smaller File depending on the result you want.

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Balanced Compression

Use the recommended Balanced setting when you want a practical combination of PDF quality and smaller file size.

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Smaller File Option

Choose Smaller File when reducing the PDF size is more important than keeping the highest image quality.

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Local Processing

Your PDF is processed directly in your browser instead of being uploaded to a server for compression.

See Your Savings

After compression, see the original size, new file size, and the percentage of space saved.

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PRIVATE BY DESIGN

Your PDF Stays in Your Browser

Your PDF is processed directly on your device in your browser. It doesn’t need to be uploaded to a server for compression.

FAQ

Frequently Asked Questions

A few quick answers about compressing PDF files.

Can I compress a PDF without uploading it?

Yes. The PDF is processed directly in your browser and does not need to be uploaded to a server.

Which compression level should I choose?

Balanced is recommended for most PDFs. High Quality is better when keeping image quality is more important, while Smaller File focuses more on reducing the file size.

Will compression reduce image quality?

It can. Stronger compression can produce a smaller file but may reduce image quality more noticeably.

Will my text remain selectable?

The current compression method rebuilds PDF pages as images. Because of this, text in the compressed PDF may no longer remain selectable as normal PDF text.

How much can I reduce a PDF?

The amount of reduction depends on the original PDF. PDFs with large images may see a larger reduction, while already optimized PDFs may show little or no reduction.

Can I see how much space I saved?

Yes. After compression, the result section shows the original file size, compressed file size, and percentage of space saved.

Is there a file size limit?

The compressor works in your browser, so the practical limit depends on your device’s available memory and browser capabilities rather than a server upload limit.

Does the compressor work offline?

The compression itself runs in your browser. An internet connection may be required initially to load the processing libraries used by the tool.