Once the PDF opens, click the Markup tool (pencil icon inside a circle) to access the following annotation tools: Highlight Text: This tool lets you emphasize key information in the PDF.

Learn how to use tools to create, annotate, and extract text from a PDF on a Chromebook.

In other words, Adobe Reader won't let you add text. What you need is a program that's a little more accommodating, PDF-wise. Try Foxit Reader 4.3, which allows you to add text to any PDF.

Now, it also lets you annotate a PDF using its PDF editing tools. Using these PDF editing tools, you can add text and use ink annotation to draw on PDF with freehand mode.

Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free Reader program.

Using the PDF Tool & Inking Feature in Microsoft Edge, you can draw on PDF files, highlight text, add text, and choose color. Learn how!

It's hard to go back to an more ordinary PDF annotator after using LiquidText, but it is not the ultimate PDF tool for the iPad.

How to navigate a PDF document using Microsoft Edge On the Windows 10 Fall Creators Update, Microsoft Edge is getting a lot of PDF improvements, some of which you'll notice immediately in the toolbar.

If you're wanting to convert an image into text, Google Docs has a powerful Optical Character Recognition feature built right in. Here's how to make it work.