Themes

Theme refers to using different background colors to render PDF document pages when displaying PDF files to adapt to user preferences and scene needs, enhancing the reading experience.

When modifying the theme, only the visual effects during document display are altered, and it does not modify the PDF document data on the disk. The theme settings are not saved within the PDF document data.

This example shows how to set the dark theme:

dart

Scaffold(
  resizeToAvoidBottomInset: false,
  appBar: AppBar(),
  body: CPDFReaderWidget(
    document: documentPath,
    configuration: CPDFConfiguration(
      readerViewConfig: const ReaderViewConfig(themes: CPDFThemes.dark)),
    onCreated: (controller) {},
  ));

Explanation of Themes

Mode	Description	Option Values
light	Uses a white background and black text, suitable for reading in well-lit environments.	CPDFThemes.light
dark	Uses a dark background and light text, suitable for reading in low-light environments.	CPDFThemes.dark
sepia	Use a beige background for users who are used to reading on paper.	CPDFThemes.sepia
reseda	Soft light green background reduces discomfort from high brightness and strong contrast when reading, effectively relieving visual fatigue.	CPDFThemes.reseda

Themes ​

Themes