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 oPDF › About oPDF.
- Your macOS version, from the Apple menu › About This Mac.
- 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
What does oPDF cost?
oPDF is free to try. The full version unlocks with a single in-app purchase — one payment, not a subscription.
I bought oPDF and set up a new Mac. Do I pay again?
No. Sign in with the Apple ID you bought it with, open oPDF and choose Restore Purchases. The same purchase also works for everyone in your Family Sharing group.
Where do my documents go?
Nowhere. oPDF has no account and no server: every file you open is read and edited on your own Mac. 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.