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By Jenefey Aaron

Updated on 2026-02-08

100 % Helpful

How to Strikethrough Text in Outlook and PDFs Easily

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By Jenefey Aaron

2026-02-08 / Knowledge

Strikethrough is a simple but effective formatting feature that allows you to mark text as removed, edited, or completed. Using strikethrough in Outlook helps make your emails clearer, highlights changes, and improves overall readability. You can apply strikethrough in Outlook through the desktop app, web app, or by using keyboard shortcuts for faster formatting. In addition, you can strikethrough in PDF documents and annotate PDF attachments for easier editing and feedback. This guide will walk you through all these methods step by step, so you can confidently use outlook strikethrough in emails and PDF files.

Part 1. How To Strikethrough Text in Outlook Desktop App?

The Outlook desktop app allows you to format your email text easily, including applying strikethrough. Strikethrough helps you show removed or completed text clearly in your emails, making them easier to read. You can quickly add outlook strikethrough using the ribbon menu or font settings. Follow the simple steps below to apply strikethrough in Outlook desktop and improve the clarity of your messages.

Step 1. Select Text

Open your Outlook desktop app and create or reply to an email. Highlight the text you want to strikethrough. Selecting the text is the first step before applying any formatting.

Oulook Homepage

Step 2. Find the Icon

Look for the Format Text tab in the top ribbon. You will see a small strikethrough icon (abc with a line through it) in the Font group.

Oulook Strikethrough

Step 3. Apply Strikethrough

Click the strikethrough icon. Your selected text will show a line through the middle, indicating the outlook strikethrough effect. You can also undo it by clicking the icon again.

Oulook Strikethrough 2

Step 4. For Double Strikethrough

If you want a double line, click the small Font Settings arrow in the bottom-right corner of the Font group. In the dialog box, check Double strikethrough and click OK. Your text now has a double line.

Using the desktop app is simple and quick. You can apply strikethrough in outlook to show edits, mark tasks as completed, or emphasize removed text.

Part 2. How To Strikethrough Text in Outlook Web App?

If you use Outlook on the web, you can easily apply strikethrough formatting without installing any additional software. The web app allows you to highlight text, access formatting options, and apply outlook strikethrough directly while composing or replying to emails. This method ensures your text edits or completed items are clearly visible to recipients, making your emails more organized and professional.

Step 1. Highlight Text

Open your browser and log in to Outlook Web App. Create a new email or reply to an existing one. Highlight the text that needs strikethrough formatting.

Oulook Highlight Text

Step 2. Open Menu

Click the Formatting options button at the bottom of the email compose window. It usually looks like an A with a brush or a three-dot menu.

Oulook Open Icon

Step 3. Choose Strikethrough

From the menu, click the strikethrough icon. Your text will now display a line through it. Using the web app is straightforward and ensures your strikethrough in outlook formatting shows correctly to all recipients.

Oulook Strikethrough Icon

By using both desktop and web apps, you can apply outlook strikethrough in any situation.

Part 3. How To Strikethrough Text in Outlook Shortcut?

Keyboard shortcuts save time and make formatting faster. Outlook provides simple outlook strikethrough shortcut for strikethrough in outlook.

  • Windows: Press Ctrl + D to open the Font dialog box, then check the Strikethrough option.
  • Mac: Press Cmd + D to open the Font settings and select Strikethrough.

These shortcuts allow you to apply outlook strikethrough shortcut quickly without using the mouse. You can use this outlook strikethrough shortcut repeatedly while composing emails for faster formatting.

Part 4. How to Strikethrough Text in Email Attachment?

Sometimes, you receive email attachments in PDF format that require edits, corrections, or comments. In such cases, using a PDF editor makes it easy to strikethrough in PDF and annotate PDF content efficiently. Tenorshare PDNob is a reliable tool that allows you to highlight text, strike through selected content, and add notes or comments directly on the PDF. With this software, you can quickly mark errors, suggest changes, or indicate completed tasks without altering the original document. Strikethrough in PDF helps maintain clarity and makes reviewing attachments simple and effective.

Step 1. Open Tenorshare PDNob

First, download and install Tenorshare PDNob on your computer. After installation, open the PDF file you received as an email attachment to start editing and adding annotations.

Pdnob Open

Step 2. Click Comment

Once the PDF is open, go to the top menu and click Comment. This activates the editing and annotation tools, allowing you to modify text, add notes, or apply strikethrough in PDF.

Pdnob Click

Step 3. Select the Target Text

Use your cursor to highlight the text in the PDF that you want to strikethrough. Make sure the selection covers all the words you want to mark for removal or editing.

Pdnob Comment

Step 4. Click Strikeout

After selecting the text, click the Strikeout button in the toolbar. The text will now show a line through it, and you can also add notes or comments if needed.

Pdnob Strikeout

Using Tenorshare PDNob allows you to strikethrough in PDF documents quickly. You can also annotate PDF files, making it easier to provide feedback, highlight changes, or mark errors in attachments.

Part 5. Benefits of Using Strikethrough in Outlook and PDFs

Applying strikethrough in outlook or PDFs is not just about formatting. It provides multiple benefits in emails and documents.

  • Clear communication: Strikethrough shows removed or outdated text clearly.
  • Task tracking: Mark completed tasks in email lists or notes.
  • Efficient editing: Highlight changes without deleting original text.
  • Professional emails: Strikethrough helps maintain neat formatting and readability.
  • PDF annotations: Combine strikethrough in PDF with notes for precise feedback.

Using strikethrough in outlook and strikethrough in PDF ensures you can manage both emails and attachments efficiently.

Part 6. Conclusion

Strikethrough is a simple yet effective way to show edits, completed tasks, or removed content in emails and PDFs. You can apply outlook strikethrough using the desktop app, web app, or keyboard shortcuts. For PDF attachments, Tenorshare PDNob allows you to strikethrough in PDF and annotate PDF easily. By mastering these methods, you save time, improve email clarity, and make document editing easier. Whether it’s a daily email task or a PDF attachment review, strikethrough in outlook and PDFs ensures your text communicates your intention clearly.

FAQs

1. What is the shortcut for strikethrough in Outlook?

The shortcut for outlook strikethrough is Ctrl + D on Windows and Cmd + D on Mac. This opens the Font dialog where you can select strikethrough quickly.

2. How do I strikethrough text in an email?

In the Outlook desktop app, select the text and click the strikethrough icon in the Font group. In the web app, highlight the text, open the formatting menu, and choose strikethrough. You can also use keyboard shortcuts for faster formatting.

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