Convert a .pub File to PDF Without Uploading It Anywhere
PubOpener turns a Microsoft Publisher (.pub) file into a PDF entirely inside your browser — free, unlimited, and with nothing uploaded to any server. It's especially useful right now: Microsoft is retiring Publisher in October 2026, and this tool extracts your document's text and images into a usable PDF without needing Publisher installed at all.
No signup, no limits, no install. Your file never leaves this browser tab — no upload, no server.
Verify: how it works ↗
When you convert a Publisher file the usual way, the .pub leaves your computer: it's uploaded to a converter's server, sits in a processing queue, and you're left trusting a deletion policy you can't see. PubOpener removes that step. Your .pub file is read and converted right inside your browser tab, so there's no upload queue, no "file too large" rejection, and no server-side copy to worry about — because there was never a copy on a server in the first place.
That matters most for anything you'd rather not hand to a random web service: client flyers with contact details, internal newsletters, event programs, invoices, or old church-bulletin and school-newsletter archives people are digging up now that Microsoft Publisher is being retired. PubOpener reads the .pub format directly, pulls out the text and embedded images, and lays them into a PDF you can download immediately.
One honest note: PubOpener extracts your content rather than re-rendering Publisher's exact page layout pixel-for-pixel. For text-heavy documents (newsletters, flyers, brochures) the result is usually clean and very usable. For dense multi-column designs with precise object placement, expect the content to come through correctly while spacing may shift slightly from the original — a true visual clone is on the roadmap but isn't what this version does.
There's no file limit, no daily conversion cap, and no account to create. Open as many .pub files as you want, one after another, for free — this is a permanent tool, not a trial.
Steps
- Choose your .pub fileClick the upload area and select the Publisher file from your computer — it loads locally and is never sent to a server.
- Let PubOpener read itThe tool parses the .pub file in your browser and extracts its text and embedded images in a few seconds.
- Download your PDFPreview the result and download it as a PDF (or switch to PNG, HTML, or plain text) with no watermark, signup, or fee.
Common questions
Is my .pub file uploaded to a server?
No. PubOpener parses the file locally in your browser using JavaScript — it is never sent anywhere, which is different from most pub-to-pdf sites that require an upload before converting.
Do I need Microsoft Publisher installed to use this?
No. Publisher was never released for Mac and is being retired on Windows too, so PubOpener reads the .pub file format directly without needing Publisher, or any other software, installed.
Is it really free, and is there a file size or usage limit?
Yes, it's completely free with no signup, no file size cap, and no limit on how many files you convert — unlike converters that cap free users at a certain file size or number of conversions per day.
Will the PDF look exactly like the original Publisher layout?
It will contain your document's actual text and embedded images, but PubOpener currently extracts content rather than reproducing Publisher's exact pixel layout, so complex multi-column designs may shift slightly.
Does this work on Mac, since Publisher never had a Mac version?
Yes — because everything runs in the browser, PubOpener works the same on Mac, Windows, Chromebook, or Linux, with no Windows virtual machine or Parallels needed.
Can I also get a PNG, HTML, or plain text version instead of PDF?
Yes, the same tool exports to PDF, PNG, HTML, or plain text from one .pub file, so you can pick whichever format you actually need.