PDF ToolsFree
Compress PDF
Reduce PDF file size without losing quality. Perfect for email attachments, web uploads, and saving storage space. Adjust compression level to balance size and quality.
💡 Run
npm install pdf-lib to enable this tool.Frequently Asked Questions
How much can I reduce PDF file size?▼
Typically 20–80% depending on content. PDFs with many images compress the most.
Will compression affect text quality?▼
Text remains crisp. Only image resolution may be slightly reduced at high compression.
Is it safe to compress sensitive documents?▼
Yes. All processing is done in your browser. Nothing is sent to any server.