If you own a Samsung Galaxy phone, you can use the preinstalled My Files app to add a PDF shortcut to your home screen. Open your file manager or Files app and locate the PDF file. Tap on the ...
You can use the macOS Finder's Copy command to copy and paste files. But here's how to use the same command to copy file icons into Preview. You've probably used the macOS Finder's popup contextual ...
Use Preview: Open the PDF in Preview, click File > Export, select “Reduce File Size” under Quartz Filter, and save. Use ColorSync Utility: Open the PDF in ColorSync Utility, click File > Export, ...