How to compress a PDF without wrecking the quality
August 15, 2026 · 5 min read
Most oversized PDFs are heavy because of images, not text. Compression works by re-encoding those images, so how much you save depends on what is inside your file.
Pick a level
- Light: barely visible change, good for documents you will print.
- Recommended: the best balance for email and web uploads.
- Strong: smallest file, best for screen-only reading and scans.
Why some PDFs barely shrink
A text-only report generated from Word is already efficient — there is little left to squeeze. A phone-photographed scan, on the other hand, can often drop by 70% or more.
Still too large?
Split the document into parts, or remove pages you do not need to send, then compress the result.