Highlight PDF

4.9 (5,000+ Reviews)

Hightlight text in PDF online for free, and without watermark

files files Select PDF File

Or drop it here.

Your files remain private and will be deleted after leaving our site.
  • No file data is uploaded or transferred over the internet
  • Files stay locally within your browser
  • All processing occurs entirely within your browser

Learn more about why PDFgear is free. Still have questions? Feel free to contact us.

Privacy Assured

Privacy Assured

Here at PDFgear, we get how important your privacy is. We're committed to making sure no data misuse of any form. To keep your files safe and to keep you totally stress-free, all your files stay on your device and are processed locally.

Free & No Watermark

Free & No Watermark

Experience our online PDF highlighter: 100% free, devoid of ads, and with no subscriptions. With our transparency promise, there are no hidden tiers. Just highlight your PDF confidently, download, and enjoy a watermark-free result.

No Download & Registration

No Download & Registration

You don’t need to download or install software on your computer with PDFgear online PDF highlight feature. Additionally, you can freely highlight text and area online without getting asked for account registration or credit card.

Flexible Highlighting Options

Flexible Highlighting Options

PDFgear provides two flexible ways to mark up PDFs online: select and highlight text, or circle and draw something freehand. This versatility ensures precise emphasis and clear conveyance of messages in any document.

More Than Highlight

More Than Highlight

Besides basic highlighting, PDFgear also offers a wide variety of annotation options such as underlining, strikethrough, lines, shapes, stamps, comments, and electronic signatures. This comprehensive set makes it easy to add any kind of annotation you need to your PDF online.

Cross Platform

Cross Platform

The PDFgear online tool enables PDF highlighting and editing across Linux, Windows, and Mac browsers. Additionally, PDFgear provides desktop and mobile apps equipped with advanced features and integrated AI technology to elevate your PDF editing experience.

Alternative Solution: Freeware to Highlight PDF Offline

PDFgear offers both free online and offline PDF highlighter.

Features PDFgear Software PDFgear Online Highlighter
Accessibility Installation required Web browser-based
File Size Limit No limit 100 MB
Performance Fastest Faster ¹
Internet Requirement Works without Internet Internet required
Functionality All-in-one PDF solution to edit, convert, sign, split, merge, compress, etc. Limited set of highlighting tools, only single color brushes
User Experience Advanced and full-featured Simple and easy to use
Data Processing Files processed on local device Files processed in browser locally
Ideal For Power users needing advanced features and offline access Users looking for fast, easy PDF highlighting online

1. Faster: Requires loading the webpage; speed may vary depending on the network connection and device performance.

How to Highlight PDF Online for Free

1. Select PDF File

Click "Select PDF File" or simply drag and drop your PDF file to PDFgear online.

2. Highlight your PDF

In the menu, select "Add or Edit annotations" on the right to find the highlight tool to start your highlighting.

3. Download PDF File

After editing, hit the download button to save your PDF. And hey, please share PDFgear if you love it!

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Highlight PDF Online Now

Your Questions Are Answered

Why can’t I highlight text my PDF online?

There are two more probably cases where you can’t highlight your PDF. One is that your PDF document is protected, which means you need to unlock the PDF. And another reason is that the PDF is a scanned document that is unselectable, so you may have to draw a shape to highlight the area.

Can I change the highlight color online?

In the PDFgear online highlighter, you can find 100+ color to use as the highlighting color or change the existing highlight color. And aside from the color presets, you can also use the color palette to choose a custom highlight color.

How to remove highlights in PDF online?

To erase highlights in PDFgear, simply open your previously highlighted PDF document in PDFgear online tool, select the highlighted section, and then press the 'delete' key on your keyboard to effortlessly remove the highlight.

How to highlight PDF on mobile phones & tablets?

Of course, you can use PDFgear Online Highlighter to highlight PDF text on your mobile device. There are also PDFgear for iOS and PDFgear for Android provide more and more flexible annotation tools, such as multi-color brushes, large-range highlighting.

Related Tips about PDF Highlighting Online

How to Highlight Text in a PDF in Mobile

Learn how to highlight PDFs on iPhone, iPad, and Android phones using 4 free and easy methods.

3 Easy Ways to Remove Highlight in PDF

This post shows you 3 easy ways to remove highlights from PDFs. You can use PDFgear online or offline for free, or use Adobe Acrobat.

4 Ways to Change Highlight Color in PDF[Free and Paid Options]

Need to change highlight color in PDF? Discover 4 easy ways to change the highlight color in PDFgear, Adobe Acrobat, Preview, and Foxit.

All-IN-ONE PDF Highlighter, Free & AI-Powered.

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