How does mac make pdf files smaller?

1. Enter the pdf and click Enter.

2. Click Select File and select PDF to open it.

3. Click File, and then click Compress File Size.

4. Click on the picture quality and select Low.

5. At this point, the pdf file is completely reduced from 35.7mb to 20.3mb, and the operation is completed.

Pdf (abbreviation pdf(portable document format, meaning "portable document format") is a file format developed by Adobe Systems, which is used to exchange files in a way that is independent of applications, operating systems and hardware. PDF file is based on PostScript language image model.

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