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PDF guides

Short, practical guides to getting smaller PDFs without the headache: compressing files, keeping quality, beating email attachment limits and handling scans.

PDF compression

How to compress a PDFThe complete walkthrough: drop, compress, download — plus levels, quality and troubleshooting. Why Is My PDF So Large?Diagnose a heavy file: images, scans, fonts and embedded content, ranked by impact.

Email & sharing

How to Compress a PDF for EmailShrink attachments that bounce back: levels, readability and checks before you hit send.

Scanned PDFs

How to Compress a Scanned PDFScans are photos of paper — learn why they balloon in size and how to shrink them legibly.

Quality

How to Compress a PDF Without Losing QualityThe size-quality trade-off, level by level: how to stay crisp while shrinking.

Start with the tool

The fastest way to learn is to compress a PDF right now — it takes seconds, right in your browser.