Compress PDF
Reduce PDF file size without losing quality
Compress your PDF files to reduce their size for easier sharing via email or uploading. Choose from different compression levels to balance quality and file size.
Drop files here or click to browse
Accepted: .PDF
How to Compress a PDF
Upload your PDF, choose a quality preset, and click Compress PDF. The tool re-renders each page as a compressed JPEG image and builds a new, smaller PDF. After processing, you can see the before and after file sizes before downloading.
Understanding Quality Presets
The Low preset renders at 1x scale with 50% JPEG quality — ideal for archiving or previewing. Medium uses 1.5x scale at 70% quality, balancing clarity and size. High renders at 2x with 85% quality for near-lossless visual fidelity at a moderate size saving.
Common Use Cases
- Reducing large PDF attachments for email
- Making PDFs faster to load on websites
- Fitting documents within storage or upload size limits
- Archiving documents at a smaller storage footprint
Frequently Asked Questions
Related tools
Further reading
- Why Is My PDF So Large? Understanding What Makes PDFs BigYour PDF is 47 MB and you need it under 10. Before you compress it, here's what's actually making it so large — and what you can do about it.
- Why Your Scanned PDF Won't Highlight: OCR Explained SimplyYou opened a PDF and tried to select text — but nothing happens. Here's why your scanned PDF behaves like an image, and what OCR can actually do about it.