Fix: "Cannot open file of this type"
You're seeing 'Cannot open file of this type' because your software — most likely Adobe Acrobat, a browser, or a non-Microsoft app — has no built-in filter to read .pub files, which is a proprietary Microsoft Publisher format. The fix is to convert the .pub file to PDF first, which almost everything can open.
Drop your .pub files here
or choose files from your device
Free · Unlimited · 50 MB each · No account needed
Converting…
About .pub to PDF conversion
What actually causes the 'Cannot open file of this type' error with .pub files?
Microsoft Publisher uses a closed, proprietary file format that only Publisher itself can natively read. When you try to open a .pub file in Acrobat, Google Docs, LibreOffice, or a browser, those apps have no import filter for it, so they immediately reject it with that error. The file is not corrupted — it simply needs a compatible application or conversion first.
Can OpenAny convert my .pub file to PDF?
Yes. Upload your .pub file at OpenAny.io and select PDF as the output format. The conversion is free, requires no account, and the file is deleted from the server within 60 seconds. The resulting PDF will preserve the layout and is openable anywhere.
What if I actually need to edit the Publisher content, not just view it?
A PDF won't let you edit the original Publisher layout. If you need to edit the content, you have two real options: open the .pub file in Microsoft Publisher (a paid desktop app), or use LibreOffice Draw, which has partial .pub import support and is free to download. Neither is perfect for complex layouts, but LibreOffice Draw is the best free editing alternative available.