The Java Runtime Engine (JRE) used by webPDF can be found in the "jre/" subfolder. As of this writing, OpenJDK 11 is the implementation being used.
Following are the configuration options for the Java VM (JVM) that webPDF needs in order to run.
Windows:
In Windows, the JVM needs to be configured with the two files with the ".vmoptions" extension (ASCII files). These two files are found in the server's installation directory.
webPDF.vmoptions - Java settings when the server is run as a normal (console) application (under Windows or Linux).
webPDF.service.vmoptions - Java settings when the server is run as a Windows service.
These files contain the (line-by-line) options for the Java Virtual Machine (JVM).
Example: The following two settings are used to set the memory settings for the JVM ("-Xmx" and "-Xms" options).
# Memory settings
-Xmx4096m
-Xms512m
|
If you want to convert large files or run many converter instances at the same time, you will have to change this memory setting. |
Linux:
The settings for the JVM for webPDF in Linux are configured directly in "webpdf.sh" or "webpdf.service" (depending on the init system being used). You will find the following line there:
webpdf.sh
javaOpt="-Xmx2048m -Xms1024m ..."
webpdf.service
ExecStart=/opt/webpdf/jre/bin/java -Xmx2048m -Xms1024m ...
You can use this line to customize the settings for the Java environment.