Local Windows utility
Office to PDF
Drop in a document — DOCX, PPTX, XLSX, ODT, RTF, TXT, HTML or EPUB — and get a clean PDF back. Whole folders convert in one run, and the layout holds because the engine carries metric-compatible fonts rather than substituting whatever it can find.
Finished PDFs land in your Converted folder.

What you can do with it
Handy things people use Office to PDF for
A few real-world jobs it makes quick — you'll find plenty more.
- Turn a coursework document into a PDF the marker can definitely open.
- Convert a deck to PDF so it looks the same on every machine you send it to.
- Batch a folder of statements or invoices into PDFs in one pass.
- Flatten a spreadsheet into a PDF for sharing without the formulas.
What it does
Everything Office to PDF handles
A focused set of jobs, each done well — and nothing that phones home.
Eleven input formats
Word, PowerPoint and Excel in both modern and legacy forms, plus OpenDocument, RTF, plain text, HTML and EPUB.
Your fonts, not a guess
The engine ships with metric-compatible fonts, so a document written in Calibri or Cambria keeps its line breaks instead of reflowing into something else.
Whole folders at once
Point it at a directory and it works through every supported file, queued in the background while you get on with something else.
No size ceiling
A 300-page report is a longer job, not a paywall. There is no page cap, no megabyte limit, and no daily quota.
How it works
From file to finished in a few clicks
- 1
Drop your documents in
One file, a selection, or a whole folder. BizTray works out which ones it can convert.
- 2
Let the engine install, once
The first Office conversion fetches the document engine — about 400 MB, cached afterwards and reused for every job.
- 3
Convert
Each file becomes a PDF on your own machine. Nothing is uploaded, and nothing waits in someone else's queue.
Under the hood
The engines, named plainly
What actually does the work, named plainly — including the part that has to download.
- Document engine
- LibreOffice-based, ~400 MB, downloaded once on first use
- Office formats
- docx · doc · pptx · ppt · xlsx · xls · odt · rtf · txt
- Web formats
- html · epub — rendered by the browser engine already installed
- Output
- Platform
- Windows 10/11 (x64) — runs fully on your machine
HTML and EPUB do not need the document engine — they render through the browser engine that ships with the app, so those two convert the moment you install. Everything else waits for that one-time download.
The rest of the belt
More tools in the tray
Questions
Office to PDF, answered
Add Office to PDF to your tray
Office to PDF ships inside BizTray alongside the rest of the toolkit — one small download, no account, no quota.