Add a Merge PDF Button to Your Mac's Right-Click Menu. Thorin Klosowski. August 15, 2016 Merging a few PDFs together on a Mac is as simple as dropping them into Preview, but if you merge a lot, it ...

There, use CHOOSE File button to add a PDF from your computer. If you want, you can also use the drop-down icon to add a PDF from your Google Drive or Dropbox account.

Open the software interface and click on the Add File button to add a PDF. After that, select the watermark template, and then click on the Processing button. You can also preview the output PDF file.

To separate PDF-related commands from the other commands, select "" in the left column and click the "Add >>" button. When finished, reposition the separator as you did the commands.

Try Foxit Reader 4.3, which allows you to add text to any PDF. After installing the program, simply open your PDF in Foxit instead of Adobe Reader, then click Comments, ...