# Compress EPUB Online

Reduce EPUB file size for free

Compress EPUB document using the application that we have developed for you. The compression application EPUB has three modes of operation "Low", "Medium" and "High". The "Low" compression mode optimizes the internal structure of the document and removes redundant metadata from the EPUB document. The "Medium" mode performs the same actions as the "Low" compression mode and additionally reduces the quality of images within the document by 50%. When using the "High" compression mode EPUB of the document, images are compressed by 75% and the maximum resolution for images will be 150px.

Why do I need to compress EPUB a document? For example, you regularly receive invoices from your partners for payment of services in the form of EPUB documents. You need to put these documents in an archive, but each document contains a logo or a graphic diagram that takes up a lot of space on your hard drives. The EPUB document compression application will help make your documents more compact and save extra space in your repositories.
 You can compress EPUB a document on any operating system, it doesn't matter if your computer is running Windows, MacOs, Linux or Android. Just open the page of this application in a web browser, load your document, select a compression mode and click the "Compress" button. In a minute, you will receive a link to download the compressed document.

## Features

- Optimize EPUB
- Choose the degree of compression
- Remove unused objects from EPUB
- Allow reuse page content
- If you select a high compression ratio, the quality of the pictures will be reduced by 75%

## How to Compress EPUB file

1. Open your browser in EPUB free application web site and go to Compress tool.

2. Click inside the file drop area to upload a EPUB file or drag & drop a EPUB file.

3. When the file will uploaded EPUB document will be compressed.

4. Click on 'COMPRESS' button. Download link of compressed EPUB file will be shown.

5. You can also send a link to the EPUB file to your email address.

6. Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period.

## FAQ

### ❓ How can I compress EPUB document?

First, you need to add a file for compression: drag & drop your EPUB file or click inside the white area for choose a file. Then click the 'COMPRESS' button. When EPUB document compression is completed, you can download your result files.

### ⏱️ How long does it take to compress EPUB document?

This Compression app works fast. You can compress EPUB in a few seconds.

### 🛡️ Is it safe to compress EPUB using free Compression app?

Of course! The download link of result files will be available instantly after compression. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. File compression is absolutely safe.

### 💻 Can I compress EPUB on Mac OS, Android or Linux?

Our EPUB Compression works online and does not require any software installation.

### 🌐 What browser should I use to compress EPUB?

You can use any modern browser to compress EPUB, for example, Google Chrome, Firefox, Opera, Safari.