People find that PDF has a large capacity, which is especially difficult to copy or send. So how to adjust the capacity of pdf? First of all, we need to download a free software in the computer, search the PDF compression software in the browser, find the tool resources and install it on the computer.

1: Click Open Tool to open the main page, and there are three functions to choose from. We choose pdf file compression.

2. In this page, we select a pdf file to open here, and click the "Add File" button to add the file.

3: Then click "Start Compression" on the page to start compressing files.

4: The compressed file page will display completion.