Compress PDF
Reduce PDF file size while preserving readability
How It Works
Select Your File
Upload, drag & drop, or paste directly from clipboard.
Configure Options
Set quality level and output format.
Download Result
Processed entirely in your browser. Download instantly.
About Compress PDF
Reduce the file size of PDF documents by re-compressing embedded images, removing duplicate resources, and applying stream compression. This browser-based tool uses PDF-lib and advanced browser APIs to process files locally without any server upload. Large PDFs with many high-resolution images can often be reduced by 50–80 %. Three compression levels are available: low (minimal quality loss), medium (balanced), and high (maximum reduction). Ideal for sharing PDFs by email, uploading to portals with size limits, or archiving documents efficiently. Text and vector graphics remain fully sharp at all compression levels.
Frequently Asked Questions
How much will my PDF shrink?
Image-heavy PDFs typically shrink 50–80 %. Text-only PDFs may see less reduction as they are already compact.
Will text still be selectable after compression?
Yes. Text, fonts, and vector graphics are not affected by the compression process.
Is there a maximum file size?
No server limit applies. Processing happens in-browser; very large files may be slow on low-memory devices.