But unlike Word Docs and other text-based files, its not always clear how to highlight in a PDF.
This guide focuses Adobe Acrobat Reader and macOS Preview.
Open your PDF in Acrobat Reader.

Select thepenicon in the toolbar at the top of the screen.
You will know the pen tool is active because it changes to the current highlighter color.
Locate the content you want to highlight.

Select and hold at the beginning of it to start your selection.
Keeping the mouse/trackpad clicked and drag the cursor to the end of the area you want to select.
Then let go of the mouse button/trackpad to apply the selected highlighted color.

SelectFile>Saveto back up your PDF changes.
Right-click thepenicon and selectShow Properties Bar.
Go to theProperties Barand grab the arrow next to the color square to open a color palette.

choose the highlight color you want from the color palette.
The pen icon in the toolbar is also the same color.
Go to the properties bar and repeat steps 3 and 4 to change the highlight to its new color.

SelectFile>Saveto preserve your PDF changes.
It’s not a problem you’re able to easily remove the highlighting from the document.
Select a highlight you want to remove.

To delete the highlight, select thetrashicon.
Your highlight has been removed.
SelectFile>Saveto back up your PDF changes.

It’s done in a similar manner to how you highlight in Adobe Acrobat Reader.
Open a PDF in Preview.
Click thehighlighter pen toolon the toolbar to activate it.

You’ll see your selection is now highlighted.
ClickFile>Saveto preserve your PDF changes.
However, you could change the highlighter color and use multiple colors in one document.

This launches a drop-down palette, offering several new highlighter colors.
Choose the one you want.
Ensuring the highlighter is still active, grab the content you want to highlight in the new color.

ClickFile>Saveto secure your PDF changes.
To delete a highlight, locate the one you want to remove and double-click it.
SelectRemove Highlightfrom the menu.

The highlight is removed.
ClickFile>Saveto secure your PDF changes.









