At work, we often come into contact with PDF files, but sometimes if the PDF file is too large, the transmission will be slow at other times. Here is a simple method to compress PDF files for your reference.

First of all, the tool we need is a mobile phone. Open your mobile phone and download a tool that can compress PDF files-fast PDF reader.

Then open this tool, click the button of the small function, and then find the function of PDF compression.

Click PDF Compression, then select the PDF file to be compressed, click the three points on the right, and then click the compressed PDF file icon that appears below.