Voice Over

Nitro Screen Reader

Nitro PDF Pro includes a built-in Screen Reader to support access to PDF content using Microsoft Text-to-Speech. 

The Screen Reader reads text content aloud using Windows Text-to-Speech technology. 

Start or stop Screen Reader 

1. Open the PDF in Nitro PDF Pro 
2. Press Ctrl + Enter on your keyboard 
3. The Screen Reader starts and reads the document content 
4. Press Ctrl + Enter again to stop the Screen Reader 
5. Screen Reader stops reading 

Pause or resume reading 

1. While content is being read, press Spacebar 
2. Reading pauses 
3. Press Spacebar again 
4. Reading resumes from the last position 

Navigate paragraphs 

1. Press Right Shift + Space 
2. The Screen Reader skips to the next paragraph 
3. Press Left Shift + Space 
4. The Screen Reader returns to the previous paragraph 

Repeat paragraph 

1. Press Right Ctrl + Space 
2. The current paragraph is read again 

View keyboard shortcuts 

1. Click Help 
2. Select Voice Over 
3. A dialog opens showing Screen Reader keyboard shortcuts 

Configure Text-to-Speech settings in Windows 

1. Open the Windows Start menu 
2. Search for Change text to speech settings and open the result 
   • Or open Control Panel > Speech Recognition > Text to Speech 
3. Adjust settings such as voice type and reading speed 
4. Click Apply, then click OK 
5. Text-to-Speech settings are updated in Windows 

Notes 

• The Screen Reader announces the page number before reading content 

• Screen Reader behavior may vary depending on document structure 

• Tagged document structure may not be fully recognized 

• Press F2 to view Screen Reader keyboard shortcuts 

Last updated: June 2026