PDFStack

Document Compressor

Compress PDF, DOCX, XLSX, and PPTX files to reduce their size

Drop documents here or click to browse

Supports PDF, DOCX, XLSX, and PPTX files only

PDF

DOCX

XLSX

PPTX

Select Documents

• PDF Files: Compress embedded images and remove metadata for best results
• Office Documents: Remove unused styles and compress images within presentations
• Large Files: Higher compression levels take longer but save more space
• Metadata Removal: Removes author info, comments, and revision history
• ZIP Archives: Perfect for sharing multiple compressed documents
• Privacy: All processing happens locally - your documents never leave your device