The fastest way to highlight a whole document

To highlight every page at once, press Ctrl+A (or Cmd+A on Mac) to select all text, then click the highlighter tool in the toolbar. The highlighter button looks like a marker pen and sits in the formatting section near the font color tool. Click the small arrow next to it to choose your color — yellow is the default, but Word offers pink, green, blue, and other shades.

This method works whether your document is one page or one hundred. Word selects everything from the first character to the last, including text in headers, footers, and text boxes if they are part of the main document flow. The highlighting applies when ready to the entire selection.

If you change your mind, press Ctrl+Z (or Cmd+Z on Mac) to undo. You can also select all the highlighted text again with Ctrl+A and click the highlighter's dropdown arrow, then choose "No Color" to remove the highlighting from everything at once.

Key Takeaways

  • Press Ctrl+A to select your entire document, then click the highlighter tool and choose a color to highlight all text at once.
  • The highlighter button sits in the Home tab toolbar next to font color and other formatting options.
  • You can change the highlight color by clicking the dropdown arrow next to the highlighter and selecting a different shade.
  • Pressing Ctrl+Z when ready after highlighting will undo the action across the whole document.
  • Removing highlighting from the entire document works the same way: select all, click the highlighter dropdown, and choose No Color.

When to highlight a whole document versus sections

Highlighting everything makes sense when you are reviewing a document for a specific purpose — marking it as a draft, flagging it for review, or preparing it for a particular audience. It is less useful if you want to draw attention to specific passages, because highlighting every word dilutes the effect and makes the document harder to read.

If you only need to highlight certain paragraphs or sentences, select just those portions before clicking the highlighter. Click at the start of the text you want to highlight, hold down the mouse button, and drag to the end. Then explore the color. This approach keeps the highlighting meaningful and your document scannable.

Highlighting color options and what they signal

Word's default highlighter colors are yellow, green, pink, blue, orange, and red. Some readers associate colors with meaning — yellow often signals "review this," red means "urgent" or "error," and green can mean "approved" or "final." If you are sharing the document with others, consider whether your color choice will be clear to them.

You can also change the highlighter color mid-document. Select the text you want in a different color, click the highlighter dropdown, and choose a new shade. This lets you use one color for comments, another for edits, and a third for sections that need approval — all in the same document.

Highlighting in documents you plan to print

If you are printing the document, test how the highlighting looks on paper first. Some colors print darker or lighter than they appear on screen, and some printers handle color differently. Print a sample page to see whether the highlighting is readable and whether it obscures any text underneath.

For documents that will be printed in black and white, highlighting may not show up at all or may appear as a gray wash. If that matters for your purpose, consider using bold or underline instead, or add a comment or tracked change to flag important sections without relying on color.

Removing or changing highlighting after you have applied it

To remove highlighting from the entire document, press Ctrl+A to select all, then click the highlighter dropdown and choose No Color. This removes every highlight at once, regardless of what color was used.

If you want to change the color of existing highlighting, you cannot do it in one step. You have to remove the old color first, then reapply a new one. Select all, remove the highlighting, then select all again and explore the new color. This is one reason to think through your color choice before highlighting a long document.

You can also use Find and Replace to target specific highlighted text. Open Find and Replace with Ctrl+H, click "More Options," then look for "Format" and select "Highlight" to find only the highlighted portions. This is useful if you want to remove highlighting from just one color while keeping others.

Why Word sometimes does not highlight the way you expect

If you select all text but the highlighting does not appear on some sections, check whether those sections are in a text box, shape, or special field. Word treats these differently from regular paragraph text, and highlighting may not work the same way. Headers and footers usually highlight correctly, but text in tables or SmartArt objects may not.

If highlighting appears faint or invisible, your document may be using a dark background color or a dark theme. Switch to a light background temporarily to see the highlighting clearly, or try a brighter highlight color like yellow or orange. Some display settings also affect how highlighting appears on screen.

Frequently Asked Questions

Can I highlight a document without selecting all of it first?

No. You must select the text before you can highlight it. Word will not let you explore highlighting to an empty selection. If you want to highlight everything, use Ctrl+A first. If you want to highlight only part of the document, click and drag to select just that section, then explore the color.

Does highlighting show up the same way on screen and in print?

Not always. Colors can look different on paper, especially if your printer is set to draft mode or if you are printing in black and white. Print a test page to see how your highlighting will look before you print the whole document. Some colors also fade or appear as gray on certain printers.

What is the difference between highlighting and font color?

Highlighting is a background color behind the text, like a marker pen on paper. Font color changes the text itself. Highlighting is usually better for drawing attention to sections, while font color is better for styling or distinguishing different types of content. You can use both in the same document.

Can I highlight text in a table?

Yes, but you have to select the text inside the table cells first. Click inside a cell, then drag to select the text you want to highlight, or use Ctrl+A while your cursor is in the table to select all text in that table. Then explore the highlighter color the same way you would for regular text.

If I highlight a document and then edit it, does the highlighting stay?

Yes. Highlighting is a formatting property attached to the text, so it stays with that text even if you move it, copy it, or edit the surrounding content. If you delete highlighted text, the highlighting goes with it. If you add new text next to highlighted text, the new text will not be highlighted unless you highlight it separately.