Transmitting a large PDF file is very inconvenient and time-consuming, and may be directly limited by its size. The easiest way to streamline PDF files is to use some professional compression tools. There are two ways to compress PDF files.

PDF compression method 1:

→ Click to download genuine lossless compression software.

1. Open Hi Format Compression Master and run the software to enter the main interface. We can see a series of compression functions such as video compression, picture compression, text compression and PDF compression. Select and click the "PDF compression" function we need.

2. After entering the "PDF Compression" interface, drag and drop the PDF file to be compressed. If there are multiple PDF files, you can add them directly (this software supports batch compression).

3. After adding a PDF file, if you have different compression requirements for the PDF file, you can make various settings for the PDF compression on the right side of the software page.

4. After setting the compression mode, click "Start Compression" and wait for a moment to complete compression.

PDF compression method 2: high format PDF converter

1. Open Hi-format PDF converter and select "PDF Compression" in the software page.

2. Enter the "PDF Compression" interface and add the PDF file to be compressed. Hi-format PDF converter supports batch processing of files, and we can add multiple PDF files for compression at the same time.

3. Next, you need to set the file compression level, including normal compression and advanced compression. Finally, click "Start Compression" in the lower right corner and wait for the PDF converter to compress these PDF files.