PDF Optimization and Compression for Court & Government Filings
Document Ingestion
Drag your oversized file. The compressor inspects embedded image DPI and font dictionaries.
Target Size Presets
Choose 1-click legal presets (2 MB / 5 MB) or balanced compression for general office records.
Zero-Egress Saving
Download the optimized file. WebAssembly processes stream compression directly in your CPU.
Lossy Image Downsampling vs Vector Text Preservation
Vector fonts and line art are compressed losslessly using FlateDecode streams. File size inflation in scanned files almost always stems from oversized 300-600 DPI bitmap scans. PDFListo performs smart bicubic downsampling to 150 DPI while stripping orphaned metadata packets, shrinking file size by up to 80% without affecting legibility.
Frequently Asked Questions about Compressing PDF
Compressing any signed PDF modifies stream bytes, which invalidates prior cryptographic hashes. Always compress your documents before applying final digital signatures.