Support
oPDF is made by one person. Write in with a bug, a question or an idea and it reaches me directly — there is no ticket queue in between.
I read everything and usually reply within two business days. English or Chinese, whichever you prefer.
What to include in a bug report
- The app version, from the About screen inside oPDF.
- Which system you are on and its version — macOS or Windows.
- What you did, what you expected, and what happened instead.
- A screenshot or a screen recording if the problem is something you can see.
- The PDF itself, if you are able to share it — most display problems are specific to one file.
Common questions
Which systems does oPDF run on?
Mac and Windows. Get the Mac version from the Mac App Store and the Windows version from the Microsoft Store.
I bought oPDF and set up a new machine. Do I pay again?
No — sign in to the same store account you bought it with. On Mac, that is the Apple ID you used, then choose Restore Purchases in oPDF; a Mac purchase also covers everyone in your Family Sharing group. On Windows, sign in to the Microsoft Store with the same Microsoft account.
Where do my documents go?
Nowhere. oPDF has no account and no server: every file you open is read and edited on your own machine. The privacy policy spells out exactly what stays on the device.
Something is missing that I need.
Tell me what you are trying to do rather than which button you want, and it goes on the list. Requests that come up more than once tend to ship first.