## Uses of Interface
org.faceless.pdf2.viewer2.PDFBackgroundTask

- Packages that use PDFBackgroundTask
  Package | Description
  --- | ---
  org.faceless.pdf2.viewer2.feature | Contains a list of all the features that are available to the PDFViewer.

- - ### Uses of PDFBackgroundTask in org.faceless.pdf2.viewer2.feature

    Classes in org.faceless.pdf2.viewer2.feature that implement PDFBackgroundTask
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BackgroundSignatureVerifier` This feature will cause signatures in the PDF to be verified automatically when a PDF is loaded by the viewer, using a thread that runs transparently in the background.
    `class` | `BackgroundTextExtractor` This feature will cause text to be extracted automatically when a PDF is loaded by the viewer.
    `static class` | `ThumbnailPanel.ThumbnailSidePanel` This type of `SidePanel` is returned from a call to `ThumbnailPanel.createSidePanel()`.

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