Audeus vs Microsoft Edge PDF Reader: What’s the Difference?

Microsoft Edge and Audeus can both help you read PDFs, but they are built for different kinds of users.

Microsoft Edge PDF Reader is convenient when you want to quickly open, view, annotate, or occasionally listen to a PDF inside your browser.

Audeus is designed more specifically for people who want to listen to PDFs and actively work with them through text to speech, highlighting, notes, OCR, and adjustable playback.

Here is how they compare.

Audeus vs Microsoft Edge PDF Reader at a glance

What is Audeus?

Audeus is a text-to-speech reader built around listening to documents.

With the Audeus PDF audio reader, you can upload a PDF and listen while keeping the original document available.

You can:

• follow synchronized highlighting
• adjust playback speed up to 3.5x
• highlight important text
• add notes
• use OCR with scanned documents
• skip several types of unnecessary PDF clutter
• continue reading across devices

That makes Audeus especially useful for long documents such as:

• research papers
• textbooks
• business reports
• course readings
• professional documents

What is Microsoft Edge PDF Reader?

Microsoft Edge includes a PDF reader directly inside the browser.

You can open a PDF without installing another application and use tools for:

• viewing pages
• highlighting
• drawing and annotation
• filling supported forms
• basic read aloud

Its biggest advantage is convenience.

If someone sends you a PDF and you simply want to open it, read a few pages, make a mark, or have part of it read aloud, Edge can handle that without requiring another dedicated reading tool.

Which is better for listening to PDFs?

This is where the biggest difference appears.

Microsoft Edge includes Read Aloud, which is useful for occasional listening.

Audeus is built more specifically around long-form listening.

For example, imagine you have a 50-page research report.

With Edge, you can open the PDF and use Read Aloud.

With Audeus, the workflow is more centered around the listening process itself.

If you regularly listen to PDFs rather than occasionally using read aloud, the Audeus PDF audio reader offers the more focused workflow.

Audeus vs Edge for scanned PDFs

Scanned PDFs create a different problem.

Sometimes a PDF is really just a collection of page images. There is no normal selectable text for a text-to-speech tool to read.

Audeus can use OCR to recognize the text inside supported scanned documents and turn it into spoken audio.

That is useful for:

• scanned textbook pages
• old research papers
• printed documents
• course packets
• photographed pages

If scanned PDFs are common in your reading workload, OCR becomes much more important than basic read aloud.

Audeus vs Edge for academic papers

Research papers often contain more than plain paragraphs.

They can include:

• citations
• page numbers
• footers
• tables
• equations
• superscript references
• figure captions

Audeus includes Smart Skips that can bypass several types of PDF clutter during listening.

That makes it especially useful for academic material where having every page number, URL, or reference spoken aloud would interrupt the flow.

You can also keep the paper visible so you can stop and inspect tables or figures when needed.

For a deeper workflow, see our guide to text to speech for academic papers.

Audeus vs Edge for playback speed

Both tools let you control reading speed, but Audeus is more focused on speed as part of the listening workflow.

Audeus supports playback up to 3.5x.

That means you could use:

• 1.25x for difficult research
• 1.5x for a textbook
• 1.75x for a business report
• 2x+ for material you are reviewing again You can change the speed depending on the section rather than listening to everything at the same pace.

Our guide on how to listen faster explains how to increase speed without making the material harder to follow.

Audeus vs Edge for highlighting and notes

Both tools allow interaction with PDFs, but the workflows are different.

Edge works well as a traditional PDF viewer with annotation tools.

Audeus connects document interaction more directly to listening.

You can listen while:

• following synchronized text
• highlighting useful passages
• adding notes
• pausing on an important section
• returning to it later

That is particularly useful when the PDF is something you are studying or using for work rather than simply reading once.

Audeus vs Edge across devices

Microsoft Edge works well when your PDF workflow stays inside the Edge browser.

Audeus is more useful when reading moves between devices.

You can use Audeus through the web and continue with the iOS app or Android app.

For example:

Start a report on your laptop → continue listening during your commute → return to your notes later.

That matters more for long documents that take multiple sessions to finish.

When should you use Microsoft Edge PDF Reader?

Edge makes sense when you need to:

• quickly open a PDF
• read it directly in the browser
• highlight or annotate a few sections
• fill out a supported PDF form
• occasionally use Read Aloud
• avoid installing another tool

For short or occasional PDF work, its built-in convenience is difficult to beat.

When should you use Audeus?

Audeus makes more sense when you regularly:

• listen to long PDFs
• study research papers
• work with scanned documents
• change playback speeds
• take notes while listening
• move between desktop and mobile
• want to reduce unnecessary PDF clutter during narration

In other words:

Edge is a PDF reader that can also read aloud.

Audeus is a reading and listening tool built around working through documents with audio.

What if you read PDFs and webpages?

Audeus is not limited to PDF files.

If your research moves between documents and the web, the Audeus Chrome extension can also read supported webpages and Google Docs.

That is useful for workflows such as:

journal webpage → PDF paper → Google Doc notes → another research article

You can keep listening without treating every format as a completely separate reading experience.

Final thoughts

Audeus and Microsoft Edge PDF Reader overlap in a few areas, but they are designed for different jobs.

Use Microsoft Edge when you want a convenient, built-in browser PDF reader with annotation and basic read-aloud features.

Use Audeus when PDF listening itself is important to your workflow and you want features such as:

• OCR
• synchronized highlighting
• notes
• adjustable speed up to 3.5x
• Smart Skips
• cross-device reading

For occasional PDF listening, Edge may already be enough.

For students, researchers, and professionals who regularly work through long documents using audio, Audeus offers the more specialized listening workflow.

You can try Audeus with one of your own PDFs.

Frequently asked questions

Can Microsoft Edge read PDFs aloud?

Yes. Microsoft Edge includes a built-in Read Aloud feature for supported PDF documents.

Can Audeus read PDFs aloud?

Yes. The [Audeus PDF audio reader](/pdf-audio-reader) lets you listen to PDFs while keeping the original document available.

Does Audeus support scanned PDFs?

Yes. Audeus can use OCR to recognize text in supported scanned or image-based documents.

Is Audeus better for long PDF listening?

Audeus is designed more specifically for long-form listening and includes features such as OCR, synchronized highlighting, notes, Smart Skips, and playback speeds up to 3.5x.

Is Microsoft Edge better for basic PDF viewing?

Edge is convenient for quickly opening, viewing, annotating, and occasionally listening to PDFs directly in the browser.

Can I use Audeus on my phone?

Yes. Audeus is available on [iOS](/text-to-speech-ios) and [Android](/text-to-speech-android).