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Compress PDFs and images entirely in your browser. No uploads, no servers, complete privacy. Compressa is a privacy first file compression tool that runs entirely in your browser. Compress PDFs using PDF.js rendering, reduce image file sizes, batch compress multiple images at once, or combine images into a single PDF document. Key Features: - PDF compression with configurable quality presets (Screen, Ebook, Printer, Prepress) - Image compression for JPG, PNG, WebP, and GIF formats - Batch image compression with ZIP download - Images to PDF conversion - Dark mode support - Mobile responsive design - Zero server uploads - all processing happens locally