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Compress PDF

Reduce PDF file size while maintaining quality

100%Browser Processing

1. Select files

Drag and drop files here or click to select

Accepted: PDF · Max size: 50MB

Compress PDF files online to reduce file size before email, upload, or storage—without sending your document to a cloud server. This browser-based PDF compressor adjusts content for smaller downloads while letting you pick moderate or maximum compression. It suits contracts, scans, manuals, and presentations when you need a smaller PDF fast and prefer local processing.

How to compress a PDF online

  1. Select a PDF file up to 50MB using the upload control.
  2. Choose moderate compression for a balance of size and quality, or maximum for the smallest file.
  3. Click Compress PDF and wait for local processing to finish.
  4. Compare original and compressed size, then download the optimized PDF.

Why compress PDF in the browser?

  • No upload means better privacy for internal business or personal documents.
  • Reduce PDF size for email attachments that have strict limits.
  • Avoid installing desktop tools for one-off compression tasks.
  • Free online PDF compression with transparent before/after file sizes.

Frequently asked questions

Does compressing PDF upload my file?
No. Compression runs locally. Your PDF stays on your computer during the process.
How much smaller will my PDF get?
Results depend on the original content. PDFs with large images or scans often shrink more than text-only files. Maximum compression may reduce quality slightly.
What is the difference between moderate and maximum compression?
Moderate aims for smaller size with less visible change. Maximum pushes file size lower and may affect image clarity more aggressively.
Is this PDF compressor free?
Yes. The tool is free to use without an account.
Can I compress a PDF for email?
Yes. Many users compress PDFs to stay under email attachment limits. Check your provider's size cap after compression.

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