X11GraphicsEnvironment error when installing PDF Studio as root on Linux

Q: When I’m installing PDF Studio as root, there’s an error message “Could not initialize class sun.awt.X11GraphicsEnvironment”. How can I solve this issue? A: On some Linux distros such as CentOS,  the user environment variables including the display may not be passed to root. The error message you will see in the console is the […]

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Edit / Annotate PDFs on Windows 10 and Surface Pro Tablets

Q: Does PDF Studio allow to edit and annotate PDFs on Windows 10, Windows 8, and Microsoft Surface Pro tablets? Yes. PDF Studio, Qoppa’s advanced PDF editor is compatible with Windows 10, Windows 8 and can run on any PC or tablet running the full version of Windows. New Touch Mode in PDF Studio 10! PDF […]

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Use PDF Studio on different computers and operating systems

Q: Can I use PDF Studio on different machines? I have a Mac laptop and a Windows desktop. A: When  you purchase a PDF Studio user license, you may install and activate PDF Studio for one user on up to 2 computers. The same license key can be used to register on any of the supported […]

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