For some reason, you need to bold text in PDF. If you don’t know how to do that, read this post of MiniTool PDF Editor now! It offers you ways to bold text in PDF offline and online. Based on your needs, choose a suitable method to complete the operation.
With a PDF editor, you can edit items on a PDF smoothly like strikethrough text, add image to PDF, add background to PDF, black out text in PDF, copy signature from a PDF, etc. Can I bold a text in PDF? Like others, you may raise such a question. Well, the answer is absolutely Yes.
You are able to bold text to emphasize certain words, phrases, or sections of the PDF. This post explores the instructions for doing that online and offline. Before that, it analyzes the necessity of the operation.
Reasons for Bolding Text in PDF
Here, I summarize the potential reasons for bolding a text in PDF.
- Highlight important information: To attract readers’ attention, you can bold certain text in the PDF like key points, headings, keywords.
- Emphasis: Bolding text is a good way to emphasize a certain word or phrase that is vital to understand the content.
- Accessibility: For readers with visual impairments, bold text enables them to distinguish between different parts of the text.
- Structural organization: Bold headings, subheadings, and titles can create a clear hierarchy and structure within the file.
As you see, bold text has many benefits. If you want to enjoy these benefits, bold text in PDF with the offered methods in the post now!
Bold Text in PDF Offline
If you want to bold text in PDF without Internet, pay attention to this section in which two methods are provided.
Option 1: Use Bold Text in PDF Shortcut
A simple way to bold text in PDF is to use keyboard shortcut. This method is available on both Windows and Mac computers, but the shortcut varies on two systems. According to your device type, apply the corresponding shortcut.
Step 1: Open the PDF with a PDF viewer or PDF editor.
Step 2: If you are on Windows, choose the text to bold and press Ctrl + B keys simultaneously. On Mac, you should press Command + B keys after you select the target text.
Option 2: Use MiniTool PDF Editor
MiniTool PDF Editor is a bold text in PDF maker, which helps you bold text with ease. In addition, it also can also insert, copy, cut, paste, replace, white-out, black out, delete, underline, strikethrough, italic text. As a professional PDF editor, it allows you to perform various operations on PDFs and items on them like text, image, link, etc.
For instance, MiniTool PDF Editor can be used to create, view, edit, convert, sign, annotate, encrypt, compress, share, read, OCR PDFs. According to your needs, you can edit the text, image, link, background, signature, and other items in the PDF.
Now, download and install MiniTool PDF Editor on your computer. Then follow the steps below to bold a text in PDF with it.
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Step 1: Run MiniTool PDF Editor to enter its main interface.
Step 2: Open the PDF with MiniTool PDF Editor.
- Drag and drop the PDF to the home menu of the software.
- Click Open in the left panel, select the directory where the PDF is located, choose the target PDF, and click the Open button.
- Right-click the target PDF, hover over Open with, and choose MiniTool PDF Editor in the sub-menu.

Step 3: Click on the Edit tab and hit Edit all. Scroll down the PDF file to locate the text to bold, select the target text, and click on the Bold icon (B). Then the selected text will become bold. Repeat this process to bold other text in the PDF.

Step 4: Click on the down arrow icon next to MiniTool Pro to open the drop-down menu. Then click on the Save as option on the menu.
Step 5: In the elevated window, configure the save location for the PDF, input the file name, and click the Save button.
Bold Text in PDF Online
If you don’t want to install extra software on your PC, you can bold text in PDF online. Bold text in PDF makers like pdfFiller enable you to bold text in PDF with ease. Different from offline tools, they require you connect to network while you use them.
Here, I show you how to bold text in PDF online via pdfFiller.
Step 1: Access pdfFiller and locate to the bold text feature.
Step 2: Upload the PDF to this bold text in PDF maker by dropping the file to the box or clicking Select from device and opening the file.

Step 3: Click on the Text tab, locate & choose the target text, and click on the Bold icon. Likewise, you can undo bold operation by selecting the bold text and clicking on the Bold icon again.

Step 4: After you finish the bold operation, click DONE or click the Download icon to save the file to the desktop.
The End
To sum up, this post summarizes the reasons and instructions for bolding text in PDF. You can bold text in PDF online and offline by following the provided steps. If you encounter any difficulty while using MiniTool PDF Editor, contact us by sending an email via support@minitool.com.