PDF is the universal document format that embeds fonts, layouts and images within the document without requiring special software to view the document. Adobe Reader allows you to open, view and make changes to PDF files and is available for free from the Adobe website. The accessibility feature of Adobe Reader allows you to change and replace font colour. You can change the font colour to any number of colours using this feature and then print the document with the changed colour.
Double-click the PDF file to open the file in Adobe Reader.
Click "Edit" from the top-menu and then select "Preferences" from the drop-down menu.
Click "Accessibility" under "Categories" in the left-pane of the Preferences window.
Check the box next to "Replace Document Colors."
Click "Custom Color."
Click the colour box next to "Document Text." Choose a colour from the colour picker box.
Check the box next to "Only change the colour of black text or line art."
Click "File" from the top-menu and then click "Print" from the drop-down menu.
Click "Properties" and make sure the check box next to "Grayscale Printing" is unchecked.
Click "OK" to print.