Free PDF Compressor

Compress PDF Online Free

Reduce your PDF file size without losing quality. Fast, free, and secure. No signup needed.

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Drop your PDF here to Compress
Click to browse · Max 10MB free · No signup needed

Your files are automatically deleted after 2 hours

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Fast Compression
Compress your PDF in seconds
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100% Secure
Files deleted after 2 hours
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No Quality Loss
Smart compression maintains quality

Frequently Asked Questions

How to compress a PDF file online for free?

Upload your PDF to PDFTash, click "Compress PDF" and download instantly. No signup required.

Will compressing reduce quality?

PDFTash uses smart compression to reduce file size while maintaining the best possible quality.

What is the maximum PDF file size?

Free users can compress PDFs up to 10MB. Pro users ($9/mo) can compress up to 200MB.

Is PDFTash a good free alternative to Smallpdf?

Yes! PDFTash offers the same compression as Smallpdf and Sejda — completely free with no signup. Plus AI features.

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