After all, that's why the highlighter (and other) tools are available. People who create them need to be confident that it isn't possible for someone else to alter them, deliberately or accidentally, in a way which would distort the intended meaning.Д«ut it is also important for people who receive and use those documents to be able to highlight passages. I understand why it is important for documents to be secured. Is it possible to introduce a way of annotating a 'Secured' document? The resulting file will be a PDF file not searchableВ but text highlight will be possible. In Advanced Print Setup check the box 'Print As Image' and click OK.

In (Windows OS) Print dialog box select the 'Microsoft print to PDF' printer option, then click on Advanced,.

Open the file in Adobe Acrobat Reader DCВ and choose Print,.

Print the PDF document as Image in a PDF file:.

This will also highlight over the character itself and the effect is not as good as the real Highlight.

If you are not satisfied with the color and opacity then right click the rectangle, click Properties and change its appearance.

Draw a rectangle around the text you want to highlight.

Click on Change Line Thickness tool and set to 0 pt,.

Click on Change Color tool, choose the color and set opacity to about 40%,.

Click on Comment icon to enable the tools.

Use a low opacity rectangle to cover the text:.

In Adobe Acrobat Reader DC two workarounds can be used:

Highlight pdf files free