PDF File Opens in Print Mode

Issue

When double-click to open a PDF file, it automatically brings up the Print dialog box in Gaaiho PDF Reader or Gaaiho PDF Suite.

Description

1. If this only happened to specific PDF files, these files are probably embedded with JavaScript.
2. If all PDF files are acting this way, it is likely that some information is missing in your "Registry". This happens in some specific operating systems with a slight possibility. 

Solution

Solution 1:

1. Open Gaaiho Doc or Gaaiho PDF Reader
2. Go to "File" > "Preferences" > "JavaScript", and uncheck "Enable JavaScript"
3. Now try open the same file again

Solution 2:

Login to your "Registry Editor (regedit)" and follow below instructions:

1. Run or Search for "regedit" to enter "Registry Editor"
2. Go to the following path (if you are using Gaaiho PDF Suite, please substitute GaaihoDoc.Document for GaaihoReader.Document):
   Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Classes\GaaihoReader.Document\shell\open\command
   
   
   
3. Right click on (Default) and select "Modify..." and input C:\Program Files (x86)\Zeon\Gaaiho\Gaaiho Reader\bin\GaaihoReader.exe" "%1" into Value data field
   

Note: please make sure the path is identical to the actual installation path