PDF Studio installer hangs on license agreement dialog

Q: When I start installing PDF Studio, it hangs on the license agreement dialog and does not let me agree and continue. How can I solve this issue? A: It is a known issue with our  Mac installer  which happens only under specific circumstances that we are still trying to identify. We had a few users […]

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Issues when opening documents using Dolphin file manager

Q: When I drag and drop PDF documents from my dolphin file manager, it is showing some error message “Error: Getting dropped file. Reason: Owner failed to convert data”. Sometimes the splash screen shows up and then goes away and the document does not open. How can I solve this issue? A: It is a known […]

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Windows Defender SmartScreen Warning when installing PDF Studio Viewer

You May Receive A “Windows Defender SmartScreen prevented an unrecognized app from running” Warning Message When Installing the Latest PDF Studio Viewer Installation Package. Product: PDF Studio Viewer 2019 April 27, 2020 Summary While installing the latest published build of PDF Studio Viewer application on Windows 10, you may receive the following warning: “Windows protected […]

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Select all the text across all pages in a PDF document

Question: In selecting text from a PDF document, is there any way that I can select and copy text from more than one page at a time, such as, select all the text in a PDF document at one time and then paste it to another document? Answer: To select & copy the text from […]

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How to purchase PDF Studio when Javascript is disabled

Q: How can I purchase PDF Studio without using Javascript? A: Due to security purposes, we use Javascipt on our Buy page and upgrade page. If you’re trying to purchase PDF Studio when Javascript is disabled/not supported in your browser , you will need to follow the steps below: Send us a payment from your […]

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Chromebook running Chrome OS 78 fails to launch file browser

Q: I’m using PDF Studio on my Chromebook running Crostini, it crashes when opening files on the latest Chrome OS 78 update. How can I solve this issue? A: The latest version of Crostini has removed some of the files needed for the graphical file managers available in Debian virtual machine interface. When launching the file […]

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Send us Feedback about PDF Studio

If you are a user of PDF Studio – Qoppa’s advanced PDF editor –  or PDF Studio Viewer – Qoppa’s free PDF Reader -, we would like to hear from you whether you would like to: Suggest a missing a feature Send us a nice comment Report a bug. When doing so, don’t forget to: Attach […]

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Troubleshooting PKCS11 Signing Errors on Linux, Mac

Q: I’m seeing some error messages when setting up PKCS11, how can I solve them ? A: When you’re in the middle of setting up PKCS11 signing, you may encounter various error messages. Review the possible error messages below, together with instructions on how to resolve them. Error 1: Unknown keyword ‘Token’, line 1 It is mostly due to the […]

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Deleting Layers in a PDF Document

Q: I created some layers in a PDF document that I no longer need, how can I delete these layers in PDF Studio? A:  Starting in PDF Studio 2020 Pro, we have a new option to delete layers from a PDF document Click Layers icon on left panel, right-clicking on the layer that you want to […]

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