OmniReader Pro 3.4.4 — macOS

OmniReader Pro works on any Mac running macOS 10.13 or later, both Intel and Apple Silicon. Here is how I used it for a straightforward task: opening a downloaded EPUB, fixing garbled text, then exporting a clean PDF.

File info and encoding

Once I opened the book, the app showed basic file information in the sidebar. The text was garbled at first. OmniReader Pro lets you adjust file encoding, so I switched it and the text came through clean.

Exporting and images

I exported the document to PDF. The app automatically adjusted image sizes so nothing ran off the page. I also extracted all images to a separate folder for reference. The export was straightforward.

Students and researchers who need full-text search in EPUB files

This app suits anyone who regularly handles EPUB or CHM files on a Mac and needs more control than the built-in Books app offers. Students working through textbooks in EPUB format can use the full-text search to find specific passages and highlight search results, which saves time during revision. People who collect reference material in CHM format — common with older software manuals and technical documentation — will appreciate that OmniReader Pro opens those files natively without conversion.

Researchers and writers who move between source documents and their own drafts benefit from the forward and back reading history. You can jump to a reference, check a fact, then return to where you were without losing your place. The image extraction feature is useful for anyone who needs to pull diagrams or illustrations out of a book for use in presentations or notes. Because the app runs on both Intel and Apple Silicon Macs, it works on older machines still running macOS 10.13 and newer hardware alike.

Fixing garbled text by adjusting the file encoding

The most frequent issue people run into is garbled text when opening a document. This usually happens when the file uses a character encoding that the app does not pick automatically. In OmniReader Pro, you can adjust the file encoding manually from the menu. If the text still looks wrong, try a different encoding option until it reads cleanly. This is especially common with older CHM files.

Another snag is the sidebar layout. New users sometimes find the sidebar takes up too much screen space. The app supports collapsing the sidebar, which gives you a full-page view of the document. Toggle it on and off as needed.

Exporting to PDF occasionally produces a file where images seem misaligned. This is usually because the source document had irregular image placement. OmniReader Pro automatically adjusts image sizes during export, but if the original layout was unusual, the output may look different from the on-screen view. Try zooming in or out before exporting to see how the page breaks will land.

If you cannot open a Kindle file, check that the file is not DRM-protected. OmniReader Pro supports Kindle files, but only those without digital rights management.

A graduate student using OmniReader Pro for thesis research on primary sources

I spoke with a graduate student in history who uses OmniReader Pro for her thesis research. She collects primary source documents in EPUB format from digital archives, plus a handful of older CHM reference works. Before using this app, she had to switch between two or three different readers depending on the file type. With OmniReader Pro, she opens everything in one place. She uses the full-text search to find mentions of specific events across multiple documents, and the highlighted search results let her scan the surrounding text quickly. When she finds a useful passage, she exports the relevant pages to PDF and drops them into her notes folder. The forward and back reading history means she can jump between sources without losing her place.

Opening an EPUB and fixing odd text with encoding settings

A typical session starts with opening a downloaded EPUB. The file loads and the sidebar shows the book title, author, and file size. If the text looks odd, I check the encoding setting and switch it until the characters display properly. Then I collapse the sidebar to get a full-page view and start reading.

While reading, I use the page turning controls to move through the document. When I need to find a specific term, I open the search panel and type it in. The app highlights every match in the text, so I can see the context around each result. I click through the matches using the forward and back buttons to review each one.

When I find something worth keeping, I export that section to PDF. The app handles the page breaks and image scaling automatically. If I need the original images for a presentation, I use the extract images feature to save them all to a folder at once. Finally, if I want a paper copy, I print the document directly from the app. The whole session uses one application, no switching between tools.

Page printing is supported. If you need a paper copy, it works without extra setup.

• macOS 10.13 or later
• Intel or Apple Silicon