Compress PDF

Compare exact input and output sizes, choose a quality target, and download only when the PDF is actually smaller.

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Compression Level

Screen Quality Strongest compression. Best for email/web.

eBook Quality Good balance of size and quality.

Print Quality High quality. Moderate size reduction.

Prepress Quality Minimal compression. Near original quality.

Screen quality gives the smallest file size.
PDFs with many high-resolution images compress most.
Text-only PDFs may not compress significantly.
If no smaller valid PDF can be produced, the tool explains that rather than returning a larger file as a successful compression.
Always keep a backup of your original PDF.