Effortlessly Annotate and Highlight PDFs with Helperbird's Dyslexia-Friendly PDF Reader

Elevate your PDF interactions with Helperbird's Dyslexia-Friendly PDF Reader. Not only can you annotate, highlight, and add sticky notes, but you also gain the advantage of dyslexia support features. With integrated text-to-speech, Immersive Reader, and a highlighter tool, navigating and studying PDFs becomes a seamless experience.

Dyslexia-Friendly PDF Reader features


Transform your PDF reading experience with Helperbird's Dyslexia-Friendly PDF reader.

Easily annotate, highlight and add sticky notes to your PDFs, all while receiving dyslexia support.

With the added benefit of text-to-speech, immersive reader and a highlighter feature, reading and studying PDFs has never been easier.

Try it now with our easy-to-use browser extension


It allows users to easily annotate and highlight PDFs, with support for users with dyslexia.

It offers a text-to-speech feature that can help users with reading difficulties.

It has an immersive reader feature that can help improve reading comprehension and focus.

It allows users to add sticky notes and annotations, making it easier to organize and study PDFs.

It also has a highlighter feature which can be used to emphasize important text.

It can help users with dyslexia to read and study PDFs more efficiently and effectively.

It can enhance the overall user experience by making PDFs more accessible and easy to understand.


  • Annotate PDFs
  • Highlight PDFs
  • Add sticky notes to PDFs
  • Text-to-speech
  • Immersive reader
  • Highlighter
  • Dyslexia support
  • Accessibility
  • Access Helperbirds software on any PDF.

How to annotate PDF files online

  • Open Helperbird and select the PDF reader option.
  • Click the open PDF button.
  • Click annotate button along the top.
  • Thats it.

How to highlight PDF files online

  • Open Helperbird and select the PDF reader option.
  • Click the open PDF button.
  • Click annotate button along the top.
  • Thats it.

Is this a Helperbird Pro feature?

No, this is not a Helperbird Pro feature.

Screenshot of a Google Docs document titled 'Untitled document'. Within the document, there's partial text stating 'Hello everyone my nam'. Beneath the incomplete sentence, there's a word prediction tool suggesting completions like 'name', 'names', 'named', etc. On the right side, the Helperbird extension is active, displaying several features. There's a bright pink 'Helperbird note' that quotes Chef Gusteau from Ratatouille, saying, 'Your only limit is your soul. What I say is true—anyone can cook ... but only the fearless can be great.' Other visible Helperbird tools include 'Voice typing', 'Sticky note', 'Word Prediction', and 'Highlighter'.

Annotations & Sticky Notes

Transform your research and workflow with Helperbird's Annotations & Sticky Notes feature. Effortlessly highlight, annotate, and leave comments on any website or PDF. Choose from a variety of colors and sizes, and organize your notes seamlessly. Save to the cloud and export in multiple formats, all while using our robust search functionality.

Line, Letter, and Word Spacing

Effortlessly fine-tune the spacing of lines, letters, and words on any website or PDF. Enhance readability and tailor your online reading experience with Helperbird.

Show Alt & Image Descriptions

Streamline your web browsing by showing image and link descriptions on mouse over with Helperbird on any website or PDF. Gain quick insights into content by hovering over images and links.

5 out of 5 stars

“After using Helperbird I can't say enough positive things about it. This extension has truly transformed my online reading experience. Whether it's adjusting font sizes, reducing eye strain with the gray filter, or using the dyslexia-friendly fonts, Helperbird offers a range of features that cater to individual preferences and needs. The customizable color options and text alignment have also been incredibly helpful for personalizing my browsing. And the speed reading feature? It's a game-changer! Overall, Helperbird is a versatile, user-friendly tool that enhances accessibility and makes online reading a breeze. Highly recommended!”

Charlie Nishelle Calkins, recognized for her contributions to Helperbird
Charlie Nishelle Calkins
Helperbird Pro user