Portable file format (PDF) file is an open and standard way to transmit files electronically. Support almost all platforms-Windows, Mac OS, Linux-to transfer documents, graphics, charts and tables, send them as email attachments, or upload them to websites. There are many ways to compress PDF files.

I believe there should be many users who use PDF now, because PDF is very compatible, including data, pictures, tables and words, and compression is a common way to store files.

1. Install the tool on the computer, click the tool to open it, click the pdf compression function on the tool page, and click the pdf compression page.

2. Then we come to the operation page of pdf compression, Ian, where we will add pdf files according to the method of adding pdf files. On the blade page, click Select File and add a pdf file.

3. If you don't know how to add a file, you can also open the pdf folder and move the pdf file to the operation page.

4. We need to analyze the size of the pdf file and which compression method is suitable for the size of the pdf file to be compressed. We choose the compression method in the following compression options.

5. Then click the "Start Compression" button on the page to compress the pdf file.