Reduce PDF file size while maintaining quality with our free online PDF compression tool.
Lossless Optimization: Our tool removes unnecessary data, unused objects, and optimizes the PDF structure without affecting visual quality.
Metadata Removal: Removes document properties, author information, and keywords that aren't needed for viewing.
Object Cleanup: Removes unused PDF objects and optimizes the internal structure for smaller file size.
Lossless: The tool rewrites the PDF structure only â images, text and fonts are kept exactly as they are.
Text Preservation: Text content and fonts are preserved without any quality loss.
Non-destructive: The original PDF file remains unchanged. You can always go back to the original if needed.
Depends on the file: PDFs exported by older or basic tools (with unused objects and no object streams) shrink the most; the tool shows the exact before/after size.
Already optimised PDFs: If the result would not be smaller, the tool tells you and keeps your original file â you never get a bigger file.
Image-heavy PDFs: Embedded images are not recompressed yet, so scanned or photo PDFs may shrink only a little.
Large Files: Larger PDFs typically achieve better compression ratios than smaller, already optimized files.
Local Processing: All compression is done directly in your browser. Your PDF files never leave your computer.
No File Upload: Files are not uploaded to any server. Processing happens entirely on your device.
Complete Privacy: Your sensitive documents remain completely private and secure throughout the process.
Temporary Processing: Files are only held in browser memory during compression and are automatically cleared when done.
Scanned Documents: PDFs created from scanned images typically achieve the highest compression ratios.
Presentations: PDFs with slides, charts, and graphics often compress very well.
Mixed Content: Documents combining text, images, and graphics benefit significantly from compression.
Pre-optimized Files: Some PDFs are already optimized and may show minimal size reduction.