Essential

Compress PDF

Reduce PDF file size with selectable compression for easier email sharing, uploads, and storage.

Select PDF file or drop here

Secure processing • Auto-deleted temporary files • Up to 128 MB

Step-by-Step Guide

How to use Compress PDF in 3 Easy Steps

Upload PDF Document

Select any large PDF file that needs size reduction.

Select Compression Level

Choose Strong, Balanced, High quality or Print quality. Compare readability and file size after processing.

Download Compressed PDF

Download the processed PDF, then compare file size and readability.

Why Use Our Compress PDF?

Choose a smaller file size while balancing readability and image quality.

Up to 90% Size Reduction

Compression results vary; an already optimized file may not become smaller.

3 Smart Presets

Strong, Balanced, High quality and Print quality presets are available.

100% Client-Side Privacy

Uploaded over HTTPS and optimized on the server using temporary working files.

Free to Use

No hidden charges, trial periods, or mandatory watermarks.

Automatic File Cleanup

Files are processed securely and temporary working files are deleted automatically after processing.

Frequently Asked Questions

Questions about Compress PDF

Will my text become blurry after compression?

Quality depends on the source and compression preset. Inspect small text, scans, stamps and images in the result before sharing.

Is there a file size limit?

Yes. The current interface limits an individual PDF to 128 MB. Compression results depend on the file and preset, and a specific output size is not guaranteed.

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What to check in your result

Output size and image quality vary. An already optimized PDF can become larger. Keep the original and compare readability and size before using the result.

This behavior was checked with synthetic test files on 9 October 2026. Results depend on your source document.

Learn

Compress PDF Under 1 MB

Read the practical guide, then use this tool when you are ready to process your document.

Read the guide →

Related Guide

How to Reduce the Size of a Scanned PDF

Working with image-heavy scans? Learn how resolution, color, margins and compression affect scanned PDF file size.

Read the guide →