Compress PDF
Reduce PDF file size while preserving quality.
How to compress a PDF
Drop your PDF onto the page and click Compress. The tool re-optimises embedded images and strips redundant data to shrink the file size while keeping the document clear and readable. Large, image-heavy PDFs usually see the biggest reduction.
When should you compress a PDF?
Compressing is ideal when a file is too large to email, won't upload to a portal with a size cap, or needs to attach to an online form. A smaller PDF uploads faster and uses less storage, with no visible loss of quality for everyday documents and scans.
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Frequently Asked Questions
How do I reduce PDF file size?
Upload your PDF, click 'Compress PDF', and download the smaller version. The tool removes redundant data and optimises the file structure.
How much will my PDF be compressed?
Results vary by content. Text-heavy PDFs compress well; image-heavy PDFs see less reduction — compress images first for bigger savings.
Is the PDF compressor free?
Yes, completely free. No watermarks, no sign-up, no size limits.
Will compression affect the PDF content?
No. Text, images, and formatting are preserved — only redundant internal data is removed.