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How to Use the Helperbird PDF Reader

The Helperbird PDF Reader in one page. What it is, what the toolbar buttons do, what the reader cannot do, and which guide covers each job.

On this page

For the installed iPhone, iPad, or Mac app, use the native PDF Reader guide. These steps cover the browser extension.

This page is the map of the Helperbird PDF Reader. It covers what the reader is, what each button in the toolbar does, and which guide takes over from here.


What the PDF Reader Is

The PDF Reader is a separate Helperbird app that opens in its own browser tab. It draws the PDF itself and puts a toolbar above it, so a document you could not type into or listen to in your browser becomes one you can.

Your file stays on your computer. Nothing is uploaded to open a PDF.

Opening PDFs, page search, zoom, drawing, typing and inserting Notepad content are free. Your device’s text-to-speech voices are free too. Natural voices, dictation, grammar, translation and equation editing need Helperbird Pro.

The browser PDF Reader showing a sample form and its main toolbar.View full-size image (opens in a new tab)
The browser PDF Reader showing a sample form and its main toolbar.

What Each Toolbar Button Does

The header contains the main document tools. Choose Zoom and search to show or hide the page-search and zoom controls.

The buttons in the PDF Reader toolbar and the guide that covers each one.
ButtonWhat it doesFull guide
Text to SpeechOpens a player bar and reads the page you are on, or the text you highlightedRead a PDF and take notes
Add TextboxPuts a box on the page that you can type in, format and moveAdd text boxes to PDFs
DrawFreehand pen, shapes, lines and arrows over the pageDrawing tools on PDFs
DownloadSaves the file, with or without the changes you madeSave and download PDFs
NotepadOpens a writing panel beside the PDF, with dictation and a grammar checkRead a PDF and take notes
ToolsHolds Immersive Reader, Translate, Summarize, Screenshot Reader and Insert equationThe Tools menu
Zoom and searchShows or hides the bar for page search, zoom, Fit width, and Fit pageRead long PDFs
Open PDFLoads a file from your computerOpen the PDF Reader

PDF Reader with Page thumbnails beside the documentView full-size image (opens in a new tab)

Reading and Layout Controls

Choose Speed Reading for a word-by-word view of the current page. It has its own pace control and a middle-letter highlight. Use Speed Reading.

Settings contains PDF Reader Width, light or dark mode, and Keyboard shortcuts. The theme changes the reader interface and the on-screen page colors. Pictures and diagrams may look different in dark mode. Switch back to light mode when the exact colors matter. Your original PDF and downloaded copy keep their original colors.

PDF Reader Settings with width, dark mode and keyboard shortcutsView full-size image (opens in a new tab)

Page thumbnails opens page previews. The Page number field above and below the document also lets you jump directly to a page.


Text-box editing controls and the PDF page in the browser reader’s dark appearance.View full-size image (opens in a new tab)
Text-box editing controls and the PDF page in the browser reader’s dark appearance.

What the Reader Cannot Do

  • It shows one page at a time. There is no continuous scroll.
  • The web Highlighter palette and Highlight Menu do not appear in the PDF Reader. Use Draw or Add Textbox to annotate the page.
  • Search looks only through the current page, not the whole document. It is free.
  • Use the Page field or Page thumbnails to jump to another page.
  • You cannot change the words already in the PDF. Anything you add sits on top of the page.
  • If the PDF has its own fill-in boxes, what you type into them is lost when you download. Put a text box on top instead.
  • Local recovery keeps one current PDF session, not a library. Opening another PDF replaces that recovery copy. Download your changes before moving on.

Where to Go Next


Video Tutorial

Watch the PDF Reader overview below. For a specific task, follow the written guides above. Older recordings may show different button names or layouts.

For drawing, watch how to draw on a PDF (opens in a new tab).


Need Additional Help?

Ran into a snag while using the PDF Reader? Reach out to our Helperbird support team and we will help you sort it out.

Printed from the Helperbird Help Center · Updated October 12th, 2026

Questions? We are happy to help — helperbird.com/support

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