Creating PDF Documents | Flutter Document Scanner

PDF Creation

ScanbotSdk.createPdf(pages, options)

The Scanbot SDK renders given page images into a multi-page PDF document and stores it as a file. For each DOCUMENT image a separate page is generated.

List<Page> pages = ...
var options = PdfRenderingOptions(pageSize: PageSize.A4);
Uri pdfFileUri = await ScanbotSdk.createPdf(pages, options);

Arguments:

• pages - a list of valid Page objects. Each page should have the cropped DOCUMENT image.
• options - PdfRenderingOptions(PdfRenderSize renderPageSize)
  • [pageSize] enum value to specify the output page size.
  • [pageDirection] page orientation eg portrait, landscape or automatic.
  • [pdfAttributes] attributes of pdf file. Author, title, etc.

class PdfRenderingOptions {
  /// The direction of the page in the PDF document.
  final PageDirection pageDirection;

  /// The size of the page in the PDF document.
  final PageSize pageSize;

  /// The PDF document attributes.
  final PdfAttributes pdfAttributes;
}


/// The page size of the pdf document.
enum PageSize {
  /// Letter page size. */
  LETTER,

  /// Legal page size. */
  LEGAL,

  /// A3 page size. */
  A3,

  /// A4 page size. */
  A4,

  /// A5 page size. */
  A5,

  /// B4 page size. */
  B4,

  /// B5 page size. */
  B5,

  /// Executive page size. */
  EXECUTIVE,

  /// US4x6 page size. */
  US4x6,

  /// US4x8 page size. */
  US4x8,

  /// US5x7 page size. */
  US5x7,

  /// COMM10 page size. */
  COMM10,

  /// Custom page size. From the Image. */
  CUSTOM,
}


/// The PDF file attributes.
class PdfAttributes {
  /// The creator of the PDF document.
  final String creator;

  /// The author of the PDF document.
  final String author;

  /// The title of the PDF document.
  final String title;

  /// The subject of the PDF document.
  final String subject;

  /// The keywords of the PDF document.
  final String keywords;

}

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