How much can I reduce my PDF file size?

Results vary depending on the PDF content. PDFs with embedded images typically see 20-60% size reduction. Text-heavy PDFs may see smaller reductions since text is already compact.

Will compressing my PDF reduce the quality?

Our compression removes unused data and optimizes the PDF structure without affecting visible quality. For most documents, the output looks identical to the original.

Why do I need to compress a PDF?

Compressed PDFs are easier to email, upload to websites, and store. Many email services have attachment size limits (usually 25 MB), and compressed PDFs help you stay under those limits.

Is there a file size limit for compression?

The tool supports files up to 100 MB. Since processing happens in your browser, very large files may take longer depending on your device.

Compress PDF Online for Free

Reduce your PDF file size without losing quality. Fast, free, and fully private — your files are processed entirely in your browser.

100% Private — Your files are processed entirely in your browser and never leave your device.

Drag & drop files here or click to browse

Max file size: 100.0 MB

How to Compress a PDF to Reduce File Size

Upload your PDF

Drag and drop or click to select the PDF file you want to compress. Files up to 100 MB are supported.

Adjust the quality level

Use the quality slider to balance between smaller file size and visual quality. Lower quality means smaller files, higher quality preserves more detail.

Compress and download

Click "Compress" and download the optimized PDF. The tool removes unused data and optimizes the file structure without visible quality loss.

Compress PDF Online for Free

How to Compress a PDF to Reduce File Size

Upload your PDF

Adjust the quality level

Compress and download

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