Re-render PDF pages as optimized JPEG images. Best for scanned documents; selectable text and links are not preserved.
Large digital PDF documents containing uncompressed camera scans and high-resolution photo assets frequently exceed email attachment limits and portal submission ceilings. This tool optimizes file weight by rendering each page onto an in-memory HTML5 canvas and recompressing it as a JPEG image, making it particularly effective for scanned paper documents and photo-heavy PDFs.
Because the process re-renders every page into a flattened JPEG bitmap image, selectable text, hyperlinks, interactive forms, accessibility structures, and digital signatures are not preserved in the compressed output. Compression effectiveness varies significantly: while documents dominated by high-resolution scans often see substantial file size reductions, vector-only or text-only PDFs may increase in file size due to JPEG raster overhead. Universal compression percentages cannot be guaranteed across varying PDF structures.
All page rendering, JPEG quantization, and PDF rebuilding execute entirely within local browser memory, ensuring privacy with zero server uploads. Always maintain an archive of your original uncompressed PDF file.
Compression Ratio (%) = [ (Original Byte Size - Compressed Byte Size) / Original Byte Size ] × 100
Renders each page to an in-memory canvas at calibrated scale; applies lossy JPEG quantization. Replaces vector text, links, forms, and signatures with rasterized page images.