PDF Komprimieren
Komprimieren Sie PDFs online kostenlos. Reduzieren Sie die Größe ohne Upload.
Note on compression
pdf-lib offers limited compression. It removes unused objects and optimizes internal structures.
Upload a PDF to compress
Frequently Asked Questions
How much can I compress a PDF?
Most PDFs can be compressed 50-80% without visible quality loss. Text-heavy PDFs compress the most. Image-heavy PDFs see smaller reductions unless you're willing to accept some quality loss for smaller file size.
Will compressing a PDF reduce print quality?
At medium compression, most people can't tell the difference in printed output. For professional printing (brochures, magazines), use light compression to preserve maximum quality.
Is PDF compression safe for sensitive documents?
Yes — our compressor works entirely in your browser. Your PDF never leaves your device, never touches a server. This is especially important for legal documents, contracts, and personal records.