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How to Highlight PDF in Adobe? (Easy Guide)

Highlighting is one of the most important and effective features available on PDF editor tools since it allows you to make important parts of your PDF documents prominent. Adobe Acrobat is an enterprise-grade PDF tool that comes with highlighting features, but many people find it difficult to use. So, if you use Adobe Acrobat, this guide will teach you how to highlight PDF in Adobe.

Part 1. How to Highlight Text in Adobe Acrobat?

Adobe Acrobat is one of the best PDF editing tools available in the market right now, and it brings multiple PDF editing and annotation features. One of its features is highlighting text in PDF documents. It supports continuous text highlighting.

Adobe Acrobat also supports customizing highlight color, and once you are done highlighting, you can add a note to the highlight part. Here is an easy guide you can follow to highlight text in your PDF documents:

1. Open PDF in Adobe Acrobat and select the Comment tool

Open Adobe Acrobat and open the PDF document in it. Then click "Tools" from the top. In the tools screen, scroll down until you see the "Comment" tool. Click it to open the comment tools in the PDF editor view.

tools in adobe acrobat

2. Select the highlight tool from the top.

The top bar of your screen will show multiple commenting and annotating options. Click the "Highlighter" tool from this menu.

highlighter tool in adobe acrobat

3. Highlight text in PDF using the cursor.

Place your cursor where you want to start highlighting, click, hold, and drag the cursor till the end of the text you want to highlight. Release the click when you are done highlighting the text.

highlight text in pdf in adobe acrobat

Adobe Acrobat provides a good experience of highlighting text in PDF documents, but it comes with some problems as well. Pricing is one of the biggest problems here since it does not come at an affordable price. Secondly, using it is not that simple, and the complex interface requires some learning curve before you can become productive with this tool. That's why most people avoid this enterprise-grade tool and look for an alternative. If you are also looking for the right alternative to Adobe Acrobat, UPDF will be a solid pick for you.

Also Read: How to Highlight a Scanned PDF

Part 2. How to Highlight PDF With Adobe Alternative - UPDF?

UPDF has multiple PDF editing features, and highlighting text in PDF documents is one of them. UPDF brings more than basic text highlighting features where you can customize the color of your highlights and enjoy continuous highlighting. Moreover, it intelligently detects and highlights text only without highlighting any blank spaces in the PDF.

highlight in adobe annotate updf

With all these features, UPDF comes at a price of US$29.99 per year, while Adobe Acrobat costs US$239.88 per year. UPDF adds even more value to your experience with unique features like adding different notes for different highlighted contents. Apart from text notes, you can add shapes, stamps, stickers, and other comments. Additionally, UPDF allows highlighting text in basic PDF documents as well as scanned PDF documents. In this guide, we will discuss both methods in detail. However, to try either of these methods, you need to download UPDF software via the below button on your device first.

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Method 1. Highlight PDF

The first method of highlighting PDF using UPDF is for the basic PDF documents that come with editable text. Follow the steps discussed below to highlight text in your PDF documents with UPDF:

1. Open PDF in UPDF and select Comment

Open the UPDF app on your device and click the "Open File" button to find and open the PDF document from files available on your PC. As the PDF document opens on your device, it will open in Reader View, where you cannot access the highlight tools. Navigate to the "Comment" tool from the left-side menu and click it to reveal the commenting tools. Click the "highlight" tool from the commenting options.

highlight in adobe comment icon updf

2. Strike text with the cursor to highlight it.

Click the text from where you want to start highlighting and move the cursor while holding it till where you want the highlight to end. With UPDF, you can continuously highlight the content. To enable it, you need to double click on the "Highlight" icon. Tjen, you can highlight the contents you need in different parts and different pages.

highlight in adobe highlight icon updf

3. Right-click on the highlight to add a note or edit the color

Once you highlight text, click on the highlighted content to select it and right-click to unveil editing options. Here, you can choose to add a note to the highlight or go it its properties to change color, etc.

highlight in adobe right click updf

To highlight your PDF documents with the easiest experience using UPDF, download it on your devices today.

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Method 2. Highlight Scanned PDF

UPDF allows you to highlight scanned PDF documents as well. For this, you need to first use the UPDF OCR feature and then highlight it like normal documents. Below are the detailed steps on how to highlight scanned PDF documents with UPDF.

1. Open scanned PDF in UPDF and perform OCR.

Double-click scanned document to open it in UPDF, which will be your default tool for opening normal and scanned PDF documents. On the right side, there will be an "OCR" option. You can click it and click "Perform OCR." Follow through the steps to save the OCRed file on your device and wait for the OCR processing to complete.


highlight in adobe perform ocr updf

2. Go to Comment and select the Highlight tool on the OCR file

When the OCRed file is saved, it will automatically open in the UPDF new tab. Since it is editable PDF document, you can highlight it using the "Comment" menu in UPDF. So, click "Comment" and then select the "Highlight" tool from the top.

highlight in adobe highlight scanned pdf updf

3. Strike to highlight with a cursor and right-click to add notes or edit properties.

Click and hold the cursor to start highlighting text, drag the cursor over the text and release click when you are done highlighting the text. After you highlight a text in a scanned document, you can right-click on the highlight to open its properties, change color, or add a note with the highlighted text.

highlight scanned pdf with updf

Download UPDF if you want to highlight scanned PDF documents.

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Other Advanced Features

In addition to the highlighting features, UPDF comes with a complete package of PDF editing tools, including the following:

  1. UPDF AI is ChatGPT integrated within the app that helps translate and summarize content in PDF documents.
  2. It comes with UPDF Cloud, which provides dedicated storage for organizing and sharing your PDF documents.
  3. UPDF offers a read-out-loud PDF feature to conveniently listen to the content of your PDF documents.
  4. One account works on Mac, Windows, iOS, and Android devices.
  5. Link, Image, and Text editing features are available
  6. Commenting and annotations
  7. Supports converting PDF documents
  8. Supports working on PDF forms, creating them, and editing old PDF forms
  9. Merge and Split features are supported here
  10. Brings PDF page organization features, including delete page, insert page, extract page, rotate documents, etc.

With all these features, UPDF offers a complete PDF editing experience on all your devices. So, purchase it today at an extremely cheap price and enjoy all the premium features offered here.


We hope that this guide to highlight PDF in Adobe has taught you the easiest way to highlight text in your PDF documents. However, when you want to pick a PDF tool for long-term usage, focus on the features it brings along with ease of use and pricing. UPDF is a tool that offers you the best functionality and experience. It comes at a very affordable price, making it a feasible solution for everyone.

So, if you are looking to highlight your PDF documents or looking for extensive PDF editing features, choose UPDF. You can download UPDF via the below button to test all features.

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