How to convert a color PDF to black and white in Preview for Mac
![Memorandum: [macOS] PreviewでPDFファイルのサイズを縮小する方法](https://4.bp.blogspot.com/-CsKEFwZrI9A/Wd3EQomadTI/AAAAAAAAM_U/PO9fnmSr9bc77nHqJLKLdYGFpFBsQTetQCLcBGAs/s1600/Untitled-1.png "Memorandum: [macOS] PreviewでPDFファイルのサイズを縮小する方法")
Memorandum: [macOS] PreviewでPDFファイルのサイズを縮小する方法
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Shrink your PDF files
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Reducing PDF File Size using Preview in OS X
Reduce PDF File Size and Control Quality for FREE in macOS
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![How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac](https://cdn.cultofmac.com/wp-content/uploads/2013/12/Quartz-Filter.jpg "How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac")
How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac
![How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac](https://cdn.cultofmac.com/wp-content/uploads/2013/12/Export-640x300.jpg "How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac")
How To Use Preview To Make Your PDF Documents Smaller [OS X Tips] | Cult of Mac
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Ways to Shrink PDF File Size on Mac
Reduce PDF File Size and Control Quality for FREE in macOS
