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Compress PDF - Reduce PDF File Size Online

Reduce PDF file size for upload limits, email attachments, and faster document sharing while preserving practical readability.

Email attachments, court or office portals, application forms, scans, and mobile sharing.No-login browser workflow

Interactive tool

This tool runs in your browser. Enable JavaScript to use the interactive features.

Quick Guide

The PDF compressor optimizes the file to make it smaller, which is especially useful when portals or email systems reject large documents.

  1. Upload the PDF you want to reduce.
  2. Run compression and wait for processing.
  3. Download the smaller PDF and verify readability.

Best for: Email attachments, court or office portals, application forms, scans, and mobile sharing.

What this tool does

The PDF compressor optimizes the file to make it smaller, which is especially useful when portals or email systems reject large documents.

Important note: Highly scanned or image-heavy PDFs may need stronger compression, which can reduce image clarity.

Useful examples

  • Reduce a scanned PDF before uploading it to a portal.
  • Compress a report so it can be sent by email.
  • Make a document easier to share from a phone connection.

FAQs

Will PDF compression reduce quality?

It can if the file needs heavy compression. Always review important documents after reducing size.

Why is my PDF still large?

Image-heavy scans, embedded fonts, and high-resolution pages can keep file size high even after compression.