Class FontManager
Provides centralized management of shared font resources used across document
Inheritance
Namespace: Syncfusion.Drawing.Fonts
Assembly: Syncfusion.Pdf.UWP.dll
Syntax
public class FontManager : ObjectRemarks
FontManager maintains common font caches to optimize performance and reduce duplication. Font instances are cached to reuse during batch conversions and long-running services. Automatic cleanup is coordinated via a System.Timers.Timer controlled by Delay. When the delay elapses, unused or idle font objects are disposed and removed from caches. For deterministic cleanup, call ClearCache() to immediately purge all managed caches.
Properties
Delay
Gets or sets the delay (in milliseconds) used to schedule disposal of font objects managed by FontManager.
Declaration
public static double Delay { get; set; }Property Value
| Type |
|---|
| System.Double |
Remarks
When fonts are no longer referenced or marked as unused, an internal System.Timers.Timer is configured with the specified Delay value to trigger disposal and removal of those fonts from the caches.
The default delay is 30000 milliseconds, and the value must be between 1 and 2,147,483,647 milliseconds.
Methods
ClearCache()
Immediately clears all font caches managed by FontManager.
Declaration
public static void ClearCache()Remarks
This method forcefully removes and disposes all font instances maintained in the shared caches. Use this to reclaim memory deterministically, instead of waiting for timeout defined in the Delay property. This method can be called when shutting down an application domain or after completing a batch conversion. Even if this method is not called, the unused fonts in cache will be disposed one by one automatically after the timeout defined in the Delay property.