PDF documents can grow very large, especially when they contain high-resolution scans, images, and heavy font libraries. Large PDFs are difficult to email, slow to load, and consume valuable server storage space.
How Compression Works
Standard compression programs shrink PDFs by rebuilding internal objects. This includes down-sampling high-resolution images, dropping unused font records, and stripping internal XML metadata tags that add bloat.
Choosing the Right Compression Balance
When compressing your document, you should target three main tiers:
- Extreme Compression: Reduces image resolution significantly, ideal for pure text sheets or fast drafts.
- Recommended Compression: Retains high text sharpness and reduces graphics resolution slightly to fit email attachments.
- Low Compression: Focuses on stripping metadata while preserving absolute graphic fidelity.